C31232233133313221211113313331333132313331333133313331333133311222131   >>    C3123223313331322121111331333133313231333133313331333133313331122213   <<    C31232233133313221211113313331333132313331333133313331333133311222133   >>      C31232233133313221211113313331333132313331333133313331333133311222132   >>