C31232233133313221211113313331333132313331322121133133313232223121   >>    C3123223313331322121111331333133313231333132212113313331323222312   <<    C31232233133313221211113313331333132313331322121133133313232223123   >>      C31232233133313221211113313331333132313331322121133133313232223122   >>