C312322331333132212111133131133133313331333131131312111133232311   >>    C31232233133313221211113313113313331333133313113131211113323231   <<    C312322331333132212111133131133133313331333131131312111133232313   >>      C312322331333132212111133131133133313331333131131312111133232312   >>