C31232233133313221211113313331333132313331322121111121133132213231221   >>    C3123223313331322121111331333133313231333132212111112113313221323122   <<    C31232233133313221211113313331333132313331322121111121133132213231223   >>      C31232233133313221211113313331333132313331322121111121133132213231222   >>