C1111133313331323223313331333133313113313231333132212111112322231   >>    C111113331333132322331333133313331311331323133313221211111232223   <<    C1111133313331323223313331333133313113313231333132212111112322233   >>      C1111133313331323223313331333133313113313231333132212111112322232   >>