C31232233133313221211113313331333133313331212111133133313233312211331   >>    C3123223313331322121111331333133313331333121211113313331323331221133   <<    C31232233133313221211113313331333133313331212111133133313233312211333   >>      C31232233133313221211113313331333133313331212111133133313233312211332   >>