C31232233133313221211113313331333131211113313231311331311213111   >>    C3123223313331322121111331333133313121111331323131133131121311   <<    C31232233133313221211113313331333131211113313231311331311213113   >>      C31232233133313221211113313331333131211113313231311331311213112   >>