C31232233133313221211113313331333132313331322121133133313231321231   >>    C3123223313331322121111331333133313231333132212113313331323132123   <<    C31232233133313221211113313331333132313331322121133133313231321233   >>      C31232233133313221211113313331333132313331322121133133313231321232   >>