#include<bits/stdc++.h>
using namespace std;
int main()
{
	double i;
	cin>>i;
	if(i<1.3)
	  cout<<"60";
	else cout<<"120";
	return 0; 
}

/**************************************************************
	Problem: 1037
	User: asd
	Language: C++
	Result: Accepted
	Time:13 ms
	Memory:2072 kb
****************************************************************/