class X

	def main is shared
		a = 1
		b = 2
		assert a & b == 0
		assert a | b == 3
		assert a ^ b == 3
		assert a << b == 4
		assert b >> a == 1
		assert ~a == -2
		assert ~b == -3

		a = 1
		b = 3
		assert a & b == 1
		assert a | b == 3
		assert a ^ b == 2
		assert a << b == 8
		assert b >> a == 1
		assert ~a == -2
		assert ~b == -4

		a = 1
		a &= 0
		assert a == 0
		a |= 1
		assert a == 1
		a ^= 0
		assert a == 1
		a ^= 1
		assert a == 0
		a = 1
		a <<= 1
		assert a == 2
		a >>= 1
		assert a == 1