C111123313121111121111331333133313331323221211113313113313331333133322113233231   >>    C11112331312111112111133133313331333132322121111331311331333133313332211323323   <<    C111123313121111121111331333133313331323221211113313113313331333133322113233233   >>      C111123313121111121111331333133313331323221211113313113313331333133322113233232   >>