INIT0 = 0x736f6d6570736575
INIT1 = 0x646f72616e646f6d
INIT2 = 0x6c7967656e657261
INIT3 = 0x7465646279746573

def sip_round(buf):
    assert len(buf) == 32

    v0 = buf[0:8]
    v1 = buf[8:16]
    v2 = buf[16:24]
    v3 = buf[24:32]
    assert len(v0) == 8
    assert len(v1) == 8
    assert len(v2) == 8
    assert len(v3) == 8

    return buf

buf = b"Yor Mama" * 4
print(buf.hex())

buf = sip_round(buf)
print(buf.hex())

596f72204d616d61596f72204d616d61596f72204d616d61596f72204d616d61
596f72204d616d61596f72204d616d61596f72204d616d61596f72204d616d61