#include<bits/stdc++.h>
using namespace std;
int main(){
    double n;
    cin>>n;
    if(n<1.3){
    	cout<<60;
    }else{
    	cout<<120;
    }
}
/**************************************************************
	Problem: 1037
	User: linyuhang
	Language: C++
	Result: Accepted
	Time:14 ms
	Memory:2072 kb
****************************************************************/