C31232233133313221211113313331333132313331322121111121133132313312121   >>    C3123223313331322121111331333133313231333132212111112113313231331212   <<    C31232233133313221211113313331333132313331322121111121133132313312123   >>      C31232233133313221211113313331333132313331322121111121133132313312122   >>