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#include<cstdio>
using namespace std;
int main(){
long long n;
scanf("%I64d",&n);
if(n == 1) puts("5");
else puts("25");
return 0;
}
[2016-04-14][codeforces][630][A][Again Twenty Five!]
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原文地址:http://www.cnblogs.com/qhy285571052/p/732aee622266d82c99020dfeb6fb7a42.html