#include<iostream>
#include<string>
using namespace std;
string sord(double sor)
{
	string finalgrade;
	//这两种方式都可以达到预定效果，不过第二个更有条理
	//finalgrade = (sor > 90) ? "high pass" : (sor < 75 && sor>60) ? "low pass" : (sor <= 60) ? "fail" : "pass";  
	finalgrade = (sor > 90) ? "high pass" : (sor > 75) ? "pass" : (sor > 60) ? "low pass" : "fail";
	return finalgrade;
}
int main()
{
	double sor;
	string st;
	cout << "请输入成绩" << endl;
	cin >> sor;
	st= sord(sor);
	cout << st;
	
}