C31232233133313221211113313331311331333133313331311331333131222321   >>    C3123223313331322121111331333131133133313331333131133133313122232   <<    C31232233133313221211113313331311331333133313331311331333131222323   >>      C31232233133313221211113313331311331333133313331311331333131222322   >>