C31232233133313221211113313331333132313331322121111121133132321223311   >>    C3123223313331322121111331333133313231333132212111112113313232122331   <<    C31232233133313221211113313331333132313331322121111121133132321223313   >>      C31232233133313221211113313331333132313331322121111121133132321223312   >>