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