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