C11112331312111112111133133313331333132323133313331312211331323311   >>    C1111233131211111211113313331333133313232313331333131221133132331   <<    C11112331312111112111133133313331333132323133313331312211331323313   >>      C11112331312111112111133133313331333132323133313331312211331323312   >>