fn main() {
    print(6 & 3, 6 | 3, 6 ^ 3, 1 << 4, 256 >> 2, ~0)
    print(5 & 1 == 1)
    u8 flags = 0
    flags = flags | 4
    flags = flags | 1
    print(flags, flags & 4 != 0, flags & 2 != 0)
    print(-16 >> 2, u8(240) >> 4)
}