#include <bits/stdc++.h>
using namespace std;
int main(){
	
	int i;
	cin>>i;
	if(i<=1.3){
		cout<<60;
	}
	if(i>=1.3){
		cout<<120;
	}

}

/**************************************************************
	Problem: 1037
	User: huangyaojie3
	Language: C++
	Result: Wrong Answer
****************************************************************/