C31232233133313221211113313331333132313331333133313331333133313331322233231211   >>    C3123223313331322121111331333133313231333133313331333133313331333132223323121   <<    C31232233133313221211113313331333132313331333133313331333133313331322233231213   >>      C31232233133313221211113313331333132313331333133313331333133313331322233231212   >>