C22121333132313311211113313331333132233131133133313331322113121221   >>    C2212133313231331121111331333133313223313113313331333132211312122   <<    C22121333132313311211113313331333132233131133133313331322113121223   >>      C22121333132313311211113313331333132233131133133313331322113121222   >>