C31232233133313221211113313331333133313113311331333133323131133133313231312111   >>    C3123223313331322121111331333133313331311331133133313332313113313331323131211   <<    C31232233133313221211113313331333133313113311331333133323131133133313231312113   >>      C31232233133313221211113313331333133313113311331333133323131133133313231312112   >>