#include<bits/stdc++.h>
using namespace std;
int main(){
	int i,v=0;
	cin>>i;
	if(i<=1.3){
		cout<<"60"; 
		return 0;
	}
	cout<<"120";
    
}
/**************************************************************
	Problem: 1037
	User: huxuanchen
	Language: C++
	Result: Wrong Answer
****************************************************************/