#include <bits/stdc++.h>
using namespace std;
int main(){
	double a;
	cin>>a;
	if(a<1.3){
	cout<<60<<endl;	
	}else{
    cout<<120<<endl;
	}
	
	return 0;
	
}
/**************************************************************
	Problem: 1037
	User: huanghao
	Language: C++
	Result: Accepted
	Time:12 ms
	Memory:2072 kb
****************************************************************/