C11112331312111112111133133313331333132112312113313231333133312323221   >>    C1111233131211111211113313331333133313211231211331323133313331232322   <<    C11112331312111112111133133313331333132112312113313231333133312323223   >>      C11112331312111112111133133313331333132112312113313231333133312323222   >>