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

anzahlVariablen = 3
x1 = False
x2 = False
x3 = False

Ueberschrift = " Index |   x3     x2     x1  |  and   or   xor"
print(Ueberschrift)
print("-" * len(Ueberschrift))
for index in range(2**anzahlVariablen):
    print(
        f"{index:5}  |{x3:5}  {x2:5} {x1:5}   |   {int(x3 and x2 and x1)}    {int(x3 or x2 or x1)}     {int(x3 ^ x2 ^ x1)}"
    )
    x1 = not x1
    if (index + 1) % 2 == 0:
        x2 = not x2
    if (index + 1) % 4 == 0:
        x3 = not x3