#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: zhengzihao3
	Language: C++
	Result: Wrong Answer
****************************************************************/