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