#include<bits/stdc++.h>
using namespace std;
int main(){
	int q;
	float s;
	cin>>s;
	if(s<1.3){
		q=60;
	}else{
		q=120;
	}
	printf("%d",q);
	return 0;
}
/**************************************************************
	Problem: 1037
	User: HUANGYIBO
	Language: C++
	Result: Wrong Answer
****************************************************************/