Codeforces Round 525 (Div. 2) |
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Finished |
Given an integer $$$x$$$, find 2 integers $$$a$$$ and $$$b$$$ such that:
The only line contains the integer $$$x$$$ $$$(1 \le x \le 100)$$$.
You should output two integers $$$a$$$ and $$$b$$$, satisfying the given conditions, separated by a space. If no pair of integers satisfy the conditions above, print "-1" (without quotes).
10
6 3
1
-1
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