#include<bits/stdc++.h>
using namespace std;
double n;
int main(){
    cin>>n;
    if(n<1.3) cout<<60;
    else cout<<120;
	return 0;       
}
/**************************************************************
	Problem: 1037
	User: zhangziang
	Language: C++
	Result: Accepted
	Time:11 ms
	Memory:2072 kb
****************************************************************/