a = 42     # decimal
h = 0xA3C  # 2620 - hex           - staring with 0x
o = 0o171  # 121  - octal         - starting with 0o
           # 011 works in Python 2.x but not in Python 3.x
           # requires the o that works in
           # (recent versions of) Python 2.x
b = 0b101  # 5  - binary numbers - starting with 0b

r = 2.3

print(a)  #   42
print(h)  # 2620
print(o)  #  121
print(b)  #    5
print(r)  #  2.3
