C11112331312111112111133133313331333132112312111111331323223311311   >>    C1111233131211111211113313331333133313211231211111133132322331131   <<    C11112331312111112111133133313331333132112312111111331323223311313   >>      C11112331312111112111133133313331333132112312111111331323223311312   >>