print(6 | 2 + 1) """ Bitwise OR has a lower precedence than addition, and we need to calculate the addition first. The calculation above reads 6 | 3 = 7 More explanation: The | operator compares each bit and set it to 1 if one or both is 1, otherwise it is set to 0: 6 = 0000000000000110 3 = 0000000000000011 -------------------- 7 = 0000000000000111 ==================== Decimal numbers and their binary values: 0 = 0000000000000000 1 = 0000000000000001 2 = 0000000000000010 3 = 0000000000000011 4 = 0000000000000100 5 = 0000000000000101 6 = 0000000000000110 7 = 0000000000000111 """