C31232233133313221211113313331333133313113311331333133313331333221211211321   >>    C3123223313331322121111331333133313331311331133133313331333133322121121132   <<    C31232233133313221211113313331333133313113311331333133313331333221211211323   >>      C31232233133313221211113313331333133313113311331333133313331333221211211322   >>