C312322331333132212111133131133133313331333131131312111112323231   >>    C31232233133313221211113313113313331333133313113131211111232323   <<    C312322331333132212111133131133133313331333131131312111112323233   >>      C312322331333132212111133131133133313331333131131312111112323232   >>