C22121333132313311211113313331333133313121111331333132233131221   >>    C2212133313231331121111331333133313331312111133133313223313122   <<    C22121333132313311211113313331333133313121111331333132233131223   >>      C22121333132313311211113313331333133313121111331333132233131222   >>