C3132121111133313233121111331333133313331333133313223313231311331   >>    C313212111113331323312111133133313331333133313331322331323131133   <<    C3132121111133313233121111331333133313331333133313223313231311333   >>      C3132121111133313233121111331333133313331333133313223313231311332   >>