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