#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: linyuhang
	Language: C++
	Result: Wrong Answer
****************************************************************/