/**************************************************** Author: LuckyQueen time: 2011.11.28 11:49 Problem solution: 就是b - a 不过wa好多次 因为我认为b>a 其实不一定 *****************************************************/ #include <iostream> #include <cstdlib> #include <cstdio> using namespace std; int main() { long long a, b; while (scanf("%lld%lld", &a, &b) != EOF) { printf("%lld\n", (b-a)>0?(b-a):(a-b)); } return 0; }
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