C312322331333132212111133133313331323133313221211111211113313123231231333211   >>    C31232233133313221211113313331333132313331322121111121111331312323123133321   <<    C312322331333132212111133133313331323133313221211111211113313123231231333213   >>      C312322331333132212111133133313331323133313221211111211113313123231231333212   >>