C31232233133313221211113313331333132313232233133313132313123121   >>    C3123223313331322121111331333133313231323223313331313231312312   <<    C31232233133313221211113313331333132313232233133313132313123123   >>      C31232233133313221211113313331333132313232233133313132313123122   >>