C1111233131211111211113313331333133313211231211331323133313233121221   >>    C111123313121111121111331333133313331321123121133132313331323312122   <<    C1111233131211111211113313331333133313211231211331323133313233121223   >>      C1111233131211111211113313331333133313211231211331323133313233121222   >>