"""
Print of Logic tables
"""
import operator

anzahlVariablen = 2
x1 = False
x2 = False

Ueberschrift = " Index |    x2    x1  |  and   or   xor"
print(Ueberschrift)
print("-" * len(Ueberschrift))
for index in range(2**anzahlVariablen):
    print(
        f"{index}  |{x2} {x1}   |   {x2 and x1}    {int(x2 or x1)}     {int(x2 ^ x1)}"
    )
    x1 = not x1
    if (index + 1) % 2 == 0:
        x2 = not x2