C31232233133313221211113313113313331333133313113313331323131211   >>    C3123223313331322121111331311331333133313331311331333132313121   <<    C31232233133313221211113313113313331333133313113313331323131213   >>      C31232233133313221211113313113313331333133313113313331323131212   >>