C32133223331333131133132212111133133313331311332333233233113211   >>    C3213322333133313113313221211113313331333131133233323323311321   <<    C32133223331333131133132212111133133313331311332333233233113213   >>      C32133223331333131133132212111133133313331311332333233233113212   >>