x = 3
if x > 5:
    print("Yes!")
else:
    print("no")
print("Bye!")


grade = 92
if grade >= 90:
    print("A")
elif grade >= 80:
    print("B")
elif grade >= 70:
    print("C")
elif grade >= 60:
    print("D")
else:
    print("R")
    
def double(x):
    return x + 2
assert(double(3) == 6)