C312322331333132212111133131133133313331333131131312111133223231   >>    C31232233133313221211113313113313331333133313113131211113322323   <<    C312322331333132212111133131133133313331333131131312111133223233   >>      C312322331333132212111133131133133313331333131131312111133223232   >>