Can anyone Tell me how is this output a valid solution for this Input ?

Правка en1, от Kakita, 2025-03-21 00:03:34

In Problem E I got a wrong answer on this test:

Input

1

2

2137 333979

Output

2137

My answer is -1,and I couldn't understand why 2137 is a valid solution knowing that 2137 is prime and 331 * 1009 = 333979.

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en4 Английский Kakita 2025-03-21 00:06:42 0 (published)
en3 Английский Kakita 2025-03-21 00:06:25 20
en2 Английский Kakita 2025-03-21 00:05:34 78
en1 Английский Kakita 2025-03-21 00:03:34 346 Initial revision (saved to drafts)