C312322331333132212111133133313331323133313221211111211113311222331211   >>    C31232233133313221211113313331333132313331322121111121111331122233121   <<    C312322331333132212111133133313331323133313221211111211113311222331213   >>      C312322331333132212111133133313331323133313221211111211113311222331212   >>