shunfurh
编程介的小学生
2017-12-02 17:32

box

  • box

Problem Description
One day, winnie received a box and a letter. In the letter, there are three integers and five operations(+,-,*,/,%). If one of the three integers can be calculated by the other two integers using any operations only once.. He can open that mysterious box. Or that box will never be open.

Input
The input contains several test cases.Each test case consists of three non-negative integers.

Output
If winnie can open that box.print "oh,lucky!".else print "what a pity!"

Sample Input
1 2 3

Sample Output
oh,lucky!

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