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()