import  java.io.*;                          
 class	 Excise0211{
	int score;
	public void set(int s){
		score=s;
	}
	public String gradels(){
		if (score<60)
			return "不合格";
		else if (score>=60 && score<90)
			return "合格";
		else return "優(yōu)秀";
	}
	}


public class TestExcise0211{
	public static void main(String[] args){
		Reader ir = new InputStreamReader(System.in);
		BufferedReader r = new BufferedReader(ir);
		String sc="";
		int intA=0;
		try{
			sc = r.readLine();
		}catch (IOException e){}
		try{
			intA=Integer.parseInt(sc);
		}catch (NumberFormatException e){
			System.out.println("輸入的數(shù)據(jù)不是整數(shù)");
		}
		Excise0211 b = new Excise0211();
		b.set(intA);	
		System.out.println(b.gradels());
		
	}
}