C313212111113331323312111133133313331333131212111133132233132233112211   >>    C31321211111333132331211113313331333133313121211113313223313223311221   <<    C313212111113331323312111133133313331333131212111133132233132233112213   >>      C313212111113331323312111133133313331333131212111133132233132233112212   >>