C31232233133313221211113313331333132313331322121111123121111121111331323311231   >>    C3123223313331322121111331333133313231333132212111112312111112111133132331123   <<    C31232233133313221211113313331333132313331322121111123121111121111331323311233   >>      C31232233133313221211113313331333132313331322121111123121111121111331323311232   >>