C31232233133313221211113313331333133313113311331333133323131133133313231131   >>    C3123223313331322121111331333133313331311331133133313332313113313331323113   <<    C31232233133313221211113313331333133313113311331333133323131133133313231133   >>      C31232233133313221211113313331333133313113311331333133323131133133313231132   >>