x = 23

if x:
    print("23 is true")

if x != 0:
    print("23 is true")

y = 0
if y:
    print("0 is true")
else:
    print("0 is false")

if y != 0:
    print("0 is true")
else:
    print("0 is false")

# 23 is true
# 0 is false
