# int
print(0b10)
print(0o10)
print(0x10)
print(int(3.5))
print(int("432"))

# float
print(3.134)
print(3e8)
print(1.61e-35)
print(float(7))
print(float(1.234))
print(float("nan"))

# none
print(None)
a = None
print(a)
print(a is None)

# bool
print(True)
print(False)
print(bool(0))
print(bool(42))
print(bool(0.21))
print(bool(-12.32))
print(bool([]))
print(bool([1, 3, 2]))
print(bool(""))
print(bool("Spam"))
print(bool("False"))

