#include <bits/stdc++.h>
using namespace std;
int main(){
	int s;
	float a;
	cin>>a;
	if(a<=1.3){
		s=60;
		cout<<s;
	}else{
		s=120;
		cout<<s;
	}
	}
/**************************************************************
	Problem: 1037
	User: tonghuawei
	Language: C++
	Result: Wrong Answer
****************************************************************/