C31232233133313221211113313331333132313331322121111121133132331231211   >>    C3123223313331322121111331333133313231333132212111112113313233123121   <<    C31232233133313221211113313331333132313331322121111121133132331231213   >>      C31232233133313221211113313331333132313331322121111121133132331231212   >>