C31232233133313221211113313331333132313331322121111121111123132311231   >>    C3123223313331322121111331333133313231333132212111112111112313231123   <<    C31232233133313221211113313331333132313331322121111121111123132311233   >>      C31232233133313221211113313331333132313331322121111121111123132311232   >>