0 & 0 = 0 0 & 1 = 0 1 & 0 = 0 1 & 1 = 1
0 | 0 = 0 0 | 1 = 1 1 | 0 = 1 1 | 1 = 1
0 ^ 0 = 0 0 ^ 1 = 1 1 ^ 0 = 1 1 ^ 1 = 0