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Codeforces Round 1123 (Div. 2)
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Codeforces Round 1123 Solution Discussion

By aryanc403

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Contests

#	Contest	Start time	Rank	Solved	Rating change	New rating
200	Ethflow Round 1 (Codeforces Round 1001, Div. 1 + Div. 2)	Jan/26/2025 17:35	6460	3	-115	1687
199	Educational Codeforces Round 173 (Rated for Div. 2)	Dec/24/2024 17:35	1662	3	-39	1802
198	Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)	Nov/30/2024 17:35	870	4	+79	1841
197	CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)	Nov/23/2024 17:35	1492	5	+32	1762
196	Codeforces Round 986 (Div. 2)	Nov/10/2024 18:35	1136	3	0	1730
195	Educational Codeforces Round 171 (Rated for Div. 2)	Oct/28/2024 17:35	2486	3	-43	1730
194	Educational Codeforces Round 170 (Rated for Div. 2)	Oct/14/2024 17:35	1303	4	+4	1773
193	Codeforces Round 976 (Div. 2) and Divide By Zero 9.0	Sep/29/2024 18:35	1529	3	-9	1769
192	Codeforces Round 973 (Div. 2)	Sep/20/2024 17:35	872	4	+34	1778
191	Codeforces Round 972 (Div. 2)	Sep/14/2024 17:35	857	4	+62	1744
190	Codeforces Round 969 (Div. 2)	Aug/30/2024 17:35	2247	3	-34	1682
189	Codeforces Round 968 (Div. 2)	Aug/25/2024 17:35	3070	4	-50	1716
188	Codeforces Round 967 (Div. 2)	Aug/20/2024 17:35	3727	3	-81	1766
187	Codeforces Round 951 (Div. 2)	Jun/06/2024 17:35	348	4	+88	1847
186	Codeforces Round 949 (Div. 2)	May/31/2024 13:05	1648	2	-40	1759
185	Codeforces Round 945 (Div. 2)	May/17/2024 17:35	199	3	+151	1799
184	Codeforces Round 942 (Div. 2)	Apr/30/2024 17:35	1611	4	-11	1648
183	Educational Codeforces Round 165 (Rated for Div. 2)	Apr/29/2024 17:35	822	4	+82	1659	Became Expert umitsaha → umitsaha
182	Codeforces Round 941 (Div. 2)	Apr/27/2024 17:35	1492	4	+15	1577
181	Codeforces Round 940 (Div. 2) and CodeCraft-23	Apr/21/2024 17:35	2846	2	-19	1562
180	Codeforces Round 939 (Div. 2)	Apr/13/2024 17:35	8567	2	-154	1581	Became Specialist umitsaha → umitsaha
179	Codeforces Round 934 (Div. 2)	Mar/16/2024 17:35	3061	3	-86	1735
178	Codeforces Round 931 (Div. 2)	Mar/01/2024 17:35	400	4	+82	1821
177	Codeforces Round 930 (Div. 2)	Feb/29/2024 17:35	962	3	+16	1739
176	Codeforces Round 922 (Div. 2)	Jan/30/2024 17:35	1477	3	+8	1723
175	Hello 2024	Jan/06/2024 17:35	2309	3	+26	1715
174	Educational Codeforces Round 160 (Rated for Div. 2)	Dec/18/2023 17:35	843	3	+49	1689
173	Codeforces Round 914 (Div. 2)	Dec/09/2023 19:05	999	4	+31	1640
172	Codeforces Round 911 (Div. 2)	Nov/26/2023 17:35	838	3	+69	1609	Became Expert umitsaha → umitsaha
171	CodeTON Round 7 (Div. 1 + Div. 2, Rated, Prizes!)	Nov/25/2023 17:50	3008	3	-23	1540
170	Educational Codeforces Round 158 (Rated for Div. 2)	Nov/24/2023 17:35	3118	3	-45	1563	Became Specialist umitsaha → umitsaha
169	Codeforces Round 910 (Div. 2)	Nov/19/2023 17:35	2886	1	-82	1608
168	Educational Codeforces Round 155 (Rated for Div. 2)	Sep/24/2023 17:35	1640	3	+5	1690
167	Codeforces Round 896 (Div. 2)	Sep/10/2023 17:05	1029	4	+16	1685
166	Educational Codeforces Round 153 (Rated for Div. 2)	Aug/17/2023 17:35	810	3	+88	1669	Became Expert umitsaha → umitsaha
165	Codeforces Round 893 (Div. 2)	Aug/15/2023 17:35	4228	2	-47	1581	Became Specialist umitsaha → umitsaha
164	Codeforces Round 891 (Div. 3)	Aug/07/2023 17:35	438	6	+79	1628	Became Expert umitsaha → umitsaha
163	Codeforces Round 890 (Div. 2) supported by Constructor Institute	Aug/05/2023 17:35	3069	2	-15	1549
162	Codeforces Round 889 (Div. 2)	Jul/29/2023 17:35	4307	3	-58	1564	Became Specialist umitsaha → umitsaha
161	Codeforces Round 882 (Div. 2)	Jul/06/2023 17:35	1715	3	+14	1622
160	CodeTON Round 5 (Div. 1 + Div. 2, Rated, Prizes!)	Jun/24/2023 17:05	2673	3	-17	1608
159	Codeforces Round 880 (Div. 2)	Jun/18/2023 17:35	796	3	+53	1625	Became Expert umitsaha → umitsaha
158	Educational Codeforces Round 150 (Rated for Div. 2)	Jun/12/2023 17:35	2901	2	-36	1572	Became Specialist umitsaha → umitsaha
157	Codeforces Round 877 (Div. 2)	Jun/04/2023 17:45	4083	2	-75	1608
156	Educational Codeforces Round 149 (Rated for Div. 2)	May/25/2023 17:35	2842	4	-64	1683
155	Educational Codeforces Round 148 (Rated for Div. 2)	May/12/2023 17:35	349	4	+100	1747
154	Codeforces Round 867 (Div. 3)	Apr/24/2023 17:35	130	6	+120	1647	Became Expert umitsaha → umitsaha
153	Educational Codeforces Round 147 (Rated for Div. 2)	Apr/20/2023 17:35	2989	3	-53	1527
152	Codeforces Round 864 (Div. 2)	Apr/08/2023 17:05	1940	3	-14	1580
151	Codeforces Round 863 (Div. 3)	Apr/04/2023 17:35	888	5	+26	1594
150	Codeforces Round 862 (Div. 2)	Apr/02/2023 17:35	3969	2	-79	1568	Became Specialist umitsaha → umitsaha
149	Codeforces Round 861 (Div. 2)	Mar/29/2023 12:05	983	2	+25	1647
148	Nebius Welcome Round (Div. 1 + Div. 2)	Mar/12/2023 17:35	1668	3	+41	1622	Became Expert umitsaha → umitsaha
147	Codeforces Round 855 (Div. 3)	Mar/02/2023 17:35	407	7	+85	1581
146	Educational Codeforces Round 144 (Rated for Div. 2)	Feb/28/2023 17:35	2291	2	+1	1496
145	Codeforces Round 854 by cybercats (Div. 1 + Div. 2)	Feb/27/2023 17:35	4502	2	-107	1495	Became Specialist umitsaha → umitsaha
144	Codeforces Round 853 (Div. 2)	Feb/25/2023 17:20	1062	3	+42	1602	Became Expert umitsaha → umitsaha
143	Codeforces Round 850 (Div. 2, based on VK Cup 2022 - Final Round)	Feb/05/2023 15:05	900	4	+37	1560
142	Codeforces Round 848 (Div. 2)	Feb/01/2023 17:35	5379	1	-86	1523	Became Specialist umitsaha → umitsaha
141	Codeforces Round 843 (Div. 2)	Jan/10/2023 14:15	1223	4	+35	1609	Became Expert umitsaha → umitsaha
140	Educational Codeforces Round 141 (Rated for Div. 2)	Jan/08/2023 17:35	3413	2	-44	1574	Became Specialist umitsaha → umitsaha
139	Codeforces Round 842 (Div. 2)	Jan/05/2023 17:35	1507	3	+29	1618	Became Expert umitsaha → umitsaha
138	Hello 2023	Jan/03/2023 17:35	4446	2	-47	1589	Became Specialist umitsaha → umitsaha
137	Codeforces Round 841 (Div. 2) and Divide by Zero 2022	Dec/27/2022 17:35	1697	3	-1	1636
136	Codeforces Round 840 (Div. 2) and Enigma 2022 - Cybros LNMIIT	Dec/19/2022 17:35	1104	2	+28	1637
135	Educational Codeforces Round 140 (Rated for Div. 2)	Dec/16/2022 17:35	1374	3	+35	1609	Became Expert umitsaha → umitsaha
134	Codeforces Round 838 (Div. 2)	Dec/15/2022 17:35	3698	2	-66	1574	Became Specialist umitsaha → umitsaha
133	Codeforces Round 837 (Div. 2)	Dec/11/2022 18:35	1056	3	+38	1640
132	Codeforces Round 834 (Div. 3)	Nov/18/2022 17:35	280	6	+91	1602	Became Expert umitsaha → umitsaha
131	CodeTON Round 3 (Div. 1 + Div. 2, Rated, Prizes!)	Nov/06/2022 17:35	3765	2	-52	1511
130	Codeforces Round 832 (Div. 2)	Nov/04/2022 17:35	3805	3	-69	1563	Became Specialist umitsaha → umitsaha
129	Codeforces Round 831 (Div. 1 + Div. 2)	Oct/29/2022 12:10	1916	4	-21	1632
128	Codeforces Round 830 (Div. 2)	Oct/23/2022 13:05	1232	3	-3	1653
127	Educational Codeforces Round 137 (Rated for Div. 2)	Oct/17/2022 17:35	1752	3	-10	1656
126	Codeforces Global Round 23	Oct/15/2022 17:35	1629	3	+46	1666
125	Codeforces Global Round 22	Sep/30/2022 17:35	1616	3	+52	1620	Became Expert umitsaha → umitsaha
124	Codeforces Round 823 (Div. 2)	Sep/25/2022 17:35	2078	3	-6	1568
123	Codeforces Round 822 (Div. 2)	Sep/23/2022 15:05	1220	4	+44	1574
122	Codeforces Round 821 (Div. 2)	Sep/19/2022 17:35	6147	2	-117	1530	Became Specialist umitsaha → umitsaha
121	Educational Codeforces Round 135 (Rated for Div. 2)	Sep/08/2022 17:35	1074	3	+38	1647
120	Codeforces Round 818 (Div. 2)	Sep/02/2022 17:35	1793	3	-4	1609
119	Educational Codeforces Round 134 (Rated for Div. 2)	Aug/27/2022 17:35	1646	3	+6	1613
118	Codeforces Round 816 (Div. 2)	Aug/20/2022 17:35	2690	2	-35	1607
117	Codeforces Round 812 (Div. 2)	Aug/06/2022 17:35	747	4	+93	1642	Became Expert umitsaha → umitsaha
116	Educational Codeforces Round 133 (Rated for Div. 2)	Aug/04/2022 17:35	3801	2	-47	1549
115	Codeforces Round 811 (Div. 3)	Aug/01/2022 17:35	1114	4	+2	1596
114	Codeforces Round 810 (Div. 2)	Jul/24/2022 17:35	2739	2	-38	1594	Became Specialist umitsaha → umitsaha
113	Codeforces Round 809 (Div. 2)	Jul/18/2022 17:35	1595	4	+18	1632
112	Codeforces Round 805 (Div. 3)	Jul/10/2022 17:35	279	6	+101	1614	Became Expert umitsaha → umitsaha
111	Codeforces Round 804 (Div. 2)	Jul/04/2022 17:35	5853	2	-89	1513	Became Specialist umitsaha → umitsaha
110	Codeforces Round 802 (Div. 2)	Jun/19/2022 12:05	1985	2	-22	1602
109	Educational Codeforces Round 130 (Rated for Div. 2)	Jun/12/2022 17:35	1164	3	+36	1624	Became Expert umitsaha → umitsaha
108	Codeforces Round 797 (Div. 3)	Jun/07/2022 17:35	766	5	+40	1588
107	CodeCraft-22 and Codeforces Round 795 (Div. 2)	May/31/2022 17:35	1174	3	+67	1548
106	Educational Codeforces Round 129 (Rated for Div. 2)	May/23/2022 17:35	766	4	+147	1481	Became Specialist umitsaha → umitsaha
105	Codeforces Round 793 (Div. 2)	May/22/2022 17:35	4248	2	-10	1334
104	Codeforces Round 792 (Div. 1 + Div. 2)	May/19/2022 17:35	5419	2	-28	1344
103	Codeforces Round 791 (Div. 2)	May/14/2022 12:35	2338	3	+31	1372
102	Educational Codeforces Round 128 (Rated for Div. 2)	May/13/2022 17:35	5450	2	-51	1341
101	Codeforces Round 790 (Div. 4)	May/10/2022 17:45	1688	7	+15	1392
100	Codeforces Round 789 (Div. 2)	May/08/2022 17:35	7896	1	-135	1377	Became Pupil umitsaha → umitsaha
99	Codeforces Round 787 (Div. 3)	May/05/2022 17:35	1403	5	+2	1512
98	Codeforces Round 786 (Div. 3)	May/02/2022 17:35	3783	4	-79	1510
97	Educational Codeforces Round 127 (Rated for Div. 2)	Apr/22/2022 17:35	2146	3	-24	1589	Became Specialist umitsaha → umitsaha
96	Educational Codeforces Round 126 (Rated for Div. 2)	Apr/09/2022 17:35	771	3	+78	1613	Became Expert umitsaha → umitsaha
95	Codeforces Round 780 (Div. 3)	Mar/31/2022 17:35	897	4	+34	1535
94	Codeforces Round 779 (Div. 2)	Mar/27/2022 17:35	2276	3	+2	1501
93	CodeTON Round 1 (Div. 1 + Div. 2, Rated, Prizes!)	Mar/24/2022 17:35	4850	3	-52	1499
92	Educational Codeforces Round 123 (Rated for Div. 2)	Feb/22/2022 17:35	2357	3	-7	1551
91	Codeforces Global Round 19	Feb/12/2022 17:35	2578	3	+24	1558
90	Codeforces Round 766 (Div. 2)	Jan/15/2022 17:35	1908	3	+28	1534
89	Hello 2022	Jan/03/2022 17:35	3753	2	-2	1506
88	Codeforces Round 763 (Div. 2)	Dec/28/2021 16:35	1467	3	+52	1508
87	Codeforces Global Round 18	Dec/24/2021 17:35	4151	2	-23	1456
86	Codeforces Round 762 (Div. 3)	Dec/20/2021 17:35	1335	3	+18	1479
85	Codeforces Round 760 (Div. 3)	Dec/14/2021 17:35	3525	3	-60	1461
84	Deltix Round, Autumn 2021 (open for everyone, rated, Div. 1 + Div. 2)	Nov/28/2021 17:35	2272	3	+9	1521
83	Codeforces Round 757 (Div. 2)	Nov/26/2021 14:15	1773	3	+22	1512
82	Codeforces Round 756 (Div. 3)	Nov/25/2021 17:35	1992	4	-21	1490
81	Codeforces Global Round 17	Nov/23/2021 17:35	1879	3	+55	1511
80	Codeforces Round 755 (Div. 2, based on Technocup 2022 Elimination Round 2)	Nov/14/2021 09:05	1717	3	-26	1456
79	Codeforces Round 753 (Div. 3)	Nov/02/2021 17:35	2057	4	-21	1482
78	Educational Codeforces Round 116 (Rated for Div. 2)	Oct/29/2021 17:35	2488	3	+4	1503
77	Codeforces Round 744 (Div. 3)	Sep/28/2021 17:35	1117	5	+34	1499
76	Codeforces Global Round 16	Sep/12/2021 17:35	3225	4	+10	1465
75	Codeforces Round 741 (Div. 2)	Aug/26/2021 17:35	3933	2	-31	1455
74	Codeforces Round 739 (Div. 3)	Aug/18/2021 17:35	2748	4	-30	1486
73	Codeforces Round 738 (Div. 2)	Aug/15/2021 17:35	5129	3	-69	1516
72	Codeforces Round 737 (Div. 2)	Aug/09/2021 17:35	2119	3	+16	1585
71	Codeforces Round 735 (Div. 2)	Jul/29/2021 17:35	907	3	+111	1569
70	Codeforces Round 734 (Div. 3)	Jul/23/2021 17:35	1506	4	+32	1458
69	Harbour.Space Scholarship Contest 2021-2022 (open for everyone, rated, Div. 1 + Div. 2)	Jul/22/2021 17:35	3628	3	+14	1426
68	Codeforces Round 733 (Div. 1 + Div. 2, based on VK Cup 2021 - Elimination (Engine))	Jul/17/2021 17:35	4214	3	-10	1412
67	Codeforces Round 732 (Div. 2)	Jul/11/2021 17:05	4355	2	-40	1422
66	Codeforces Round 731 (Div. 3)	Jul/10/2021 17:35	2835	4	-21	1462
65	Codeforces Round 729 (Div. 2)	Jul/03/2021 16:05	3663	2	-16	1483
64	Codeforces Round 728 (Div. 2)	Jun/25/2021 18:35	2695	3	-9	1499
63	Codeforces Round 726 (Div. 2)	Jun/18/2021 17:35	1962	4	+65	1508
62	Codeforces Round 725 (Div. 3)	Jun/10/2021 17:35	1617	4	+34	1443
61	Educational Codeforces Round 110 (Rated for Div. 2)	Jun/04/2021 17:35	2377	3	+65	1409	Became Specialist umitsaha → umitsaha
60	Codeforces Round 723 (Div. 2)	May/28/2021 17:05	3655	3	+33	1344
59	Codeforces Round 722 (Div. 2)	May/24/2021 17:35	5747	2	-18	1311
58	Codeforces Round 721 (Div. 2)	May/20/2021 17:35	4175	2	+30	1329
57	Educational Codeforces Round 109 (Rated for Div. 2)	May/16/2021 11:00	5611	2	-51	1299
56	Codeforces Round 720 (Div. 2)	May/07/2021 17:35	5602	1	-21	1350
55	Codeforces Round 719 (Div. 3)	May/05/2021 17:35	4135	4	-22	1371
54	Codeforces Global Round 14	May/02/2021 17:35	3345	4	+50	1393
53	Educational Codeforces Round 108 (Rated for Div. 2)	Apr/29/2021 17:35	2749	3	+68	1343
52	Contest 2050 and Codeforces Round 718 (Div. 1 + Div. 2)	Apr/23/2021 17:35	6161	1	-30	1275
51	Codeforces Round 717 (Div. 2)	Apr/21/2021 16:35	9819	0	-151	1305	Became Pupil umitsaha → umitsaha
50	Codeforces Round 713 (Div. 3)	Apr/10/2021 17:35	1224	4	+36	1456
49	Codeforces Round 710 (Div. 3)	Mar/25/2021 17:35	1100	5	+65	1420	Became Specialist umitsaha → umitsaha
48	Educational Codeforces Round 106 (Rated for Div. 2)	Mar/18/2021 17:50	5097	2	-46	1355	Became Pupil umitsaha → umitsaha
47	Codeforces Round 706 (Div. 2)	Mar/10/2021 15:05	4067	3	-38	1401
46	Educational Codeforces Round 105 (Rated for Div. 2)	Mar/02/2021 17:45	2671	2	+37	1439
45	Codeforces Global Round 13	Feb/28/2021 16:35	4602	2	-10	1402
44	Educational Codeforces Round 104 (Rated for Div. 2)	Feb/15/2021 17:35	3269	3	+21	1412	Became Specialist umitsaha → umitsaha
43	Codeforces Round 700 (Div. 2)	Feb/07/2021 17:35	3391	2	+26	1391
42	Codeforces Round 699 (Div. 2)	Feb/05/2021 17:35	7625	2	-72	1365	Became Pupil umitsaha → umitsaha
41	Educational Codeforces Round 103 (Rated for Div. 2)	Jan/29/2021 17:35	3521	2	+22	1437
40	Codeforces Round 698 (Div. 2)	Jan/28/2021 17:35	5364	2	-41	1415
39	Codeforces Round 694 (Div. 2)	Jan/05/2021 17:35	1932	3	+68	1456	Became Specialist umitsaha → umitsaha
38	Codeforces Round 693 (Div. 3)	Jan/04/2021 17:35	1744	4	+52	1388
37	Good Bye 2020	Dec/30/2020 17:35	6454	3	-14	1336
36	Educational Codeforces Round 101 (Rated for Div. 2)	Dec/28/2020 17:35	4228	2	+9	1350
35	Codeforces Round 692 (Div. 2, based on Technocup 2021 Elimination Round 3)	Dec/20/2020 18:05	2725	2	+20	1341
34	Codeforces Round 690 (Div. 3)	Dec/15/2020 17:35	3528	3	-16	1321
33	Codeforces Round 689 (Div. 2, based on Zed Code Competition)	Dec/11/2020 17:35	4858	1	-57	1337
32	Codeforces Global Round 12	Dec/06/2020 17:35	3261	2	+29	1394
31	Codeforces Round 686 (Div. 3)	Nov/24/2020 17:35	1635	4	+54	1365
30	Codeforces Round 685 (Div. 2)	Nov/21/2020 17:35	3542	3	+47	1311
29	Codeforces Round 684 (Div. 2)	Nov/17/2020 17:35	3927	2	+1	1264
28	Codeforces Round 683 (Div. 2, by Meet IT)	Nov/15/2020 17:35	3121	3	-10	1263
27	Codeforces Round 681 (Div. 2, based on VK Cup 2019-2020 - Final)	Nov/02/2020 17:35	3221	2	+11	1273
26	Codeforces Round 677 (Div. 3)	Oct/20/2020 17:35	3102	5	+31	1262
25	Codeforces Raif Round 1 (Div. 1 + Div. 2)	Oct/17/2020 16:05	6205	2	-33	1231
24	Codeforces Global Round 11	Oct/10/2020 17:50	4270	1	+27	1264
23	Grakn Forces 2020	Sep/30/2020 17:35	3924	2	+51	1237	Became Pupil umitsaha → umitsaha
22	Codeforces Round 674 (Div. 3)	Sep/28/2020 11:05	4147	2	-23	1186	Became Newbie umitsaha → umitsaha
21	Codeforces Round 673 (Div. 2)	Sep/27/2020 18:05	4977	1	-41	1209
20	Codeforces Round 672 (Div. 2)	Sep/24/2020 17:35	5986	2	-8	1250
19	Codeforces Round 669 (Div. 2)	Sep/08/2020 17:35	5363	2	+15	1258
18	Codeforces Round 668 (Div. 2)	Sep/06/2020 17:35	5918	2	-13	1243
17	Codeforces Global Round 10	Aug/16/2020 17:35	5030	3	+29	1256
16	Codeforces Round 664 (Div. 2)	Aug/12/2020 17:35	5315	2	+37	1227	Became Pupil umitsaha → umitsaha
15	Codeforces Round 663 (Div. 2)	Aug/09/2020 17:35	9481	2	-66	1190	Became Newbie umitsaha → umitsaha
14	Codeforces Round 660 (Div. 2)	Jul/30/2020 17:35	8598	2	-50	1256
13	Educational Codeforces Round 92 (Rated for Div. 2)	Jul/29/2020 17:35	5013	2	+45	1306
12	Codeforces Round 659 (Div. 2)	Jul/24/2020 17:35	5090	1	+38	1261
11	Codeforces Round 658 (Div. 2)	Jul/21/2020 17:35	8513	2	-33	1223
10	Codeforces Round 656 (Div. 3)	Jul/17/2020 17:35	4207	3	+25	1256
9	Codeforces Round 652 (Div. 2)	Jun/23/2020 17:05	7468	2	-10	1231
8	Codeforces Round 650 (Div. 3)	Jun/16/2020 17:35	3576	3	+60	1241	Became Pupil umitsaha → umitsaha
7	Codeforces Round 649 (Div. 2)	Jun/13/2020 18:05	6697	1	+16	1181
6	Educational Codeforces Round 89 (Rated for Div. 2)	Jun/11/2020 17:35	4751	2	+157	1165
5	Codeforces Round 648 (Div. 2)	Jun/07/2020 17:35	11007	0	-7	1008
4	Codeforces Round 646 (Div. 2)	May/31/2020 17:35	9467	1	+130	1015
3	Educational Codeforces Round 88 (Rated for Div. 2)	May/28/2020 17:35	10352	2	+201	885
2	Codeforces Round 645 (Div. 2)	May/26/2020 17:35	10978	2	+284	684
1	Codeforces Round 644 (Div. 3)	May/24/2020 16:35	10498	2	+400	400	umitsaha → umitsaha

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