Grade = int(input("Enter your grade: "))
 
	if Grade >= 0 and Grade <= 100:
 
	    if Grade >= 90 and Grade <= 100:
 
	        print("Excellent")
 
	    elif Grade >= 80 and Grade <= 89:
 
	        print("Very very good")
 
	    elif Grade >= 70 and Grade <= 79:
 
	        print(" Very good")
 
	    elif Grade >= 60  and Grade <= 69:
 
	        print("Good")
 
	    elif Grade >= 50  and Grade <= 59:
 
	        print("Acceptable")
 
	    else:
 
	        print("Failed")
 
	   
 
	else:
 
	    print("Please try again")
 
	    exit()