C31232233133313221211113313331333132313331211113313332313221211   >>    C3123223313331322121111331333133313231333121111331333231322121   <<    C31232233133313221211113313331333132313331211113313332313221213   >>      C31232233133313221211113313331333132313331211113313332313221212   >>