#include <bits/stdc++.h>
using namespace std;
int main(){
	double n;
	cin>>n;
	cout<<(n<1.3?60:120);
	return 0;
}

/**************************************************************
	Problem: 1037
	User: zhouhongyi
	Language: C++
	Result: Accepted
	Time:12 ms
	Memory:2072 kb
****************************************************************/