#include<bits/stdc++.h>
using namespace std;
int main(){
	float n;
	cin>>n;
	if(n<1.3) {
		cout<<60;
    }else{
    	cout<<120;
    }
}
/**************************************************************
	Problem: 1037
	User: wangyiyang
	Language: C++
	Result: Wrong Answer
****************************************************************/