C31232233133313221211113313331333131211113313231311331323222322321   >>    C3123223313331322121111331333133313121111331323131133132322232232   <<    C31232233133313221211113313331333131211113313231311331323222322323   >>      C31232233133313221211113313331333131211113313231311331323222322322   >>