Here is the problem I solved: http://mirror.codeforces.com/problemset/problem/765/A). I submitted a code (My code: http://pastebin.com/8FckK356 ). It gives WA on test 11 (test 11: http://pastebin.com/g7MC6YJf ). But in my computer I paste the test and it outputs the correct result. The logic in my code is correct. So why does the CodeForces judge output a different result for my code?