C11112331312111112111133133313331333132112312113313231333132322121323331313311   >>    C1111233131211111211113313331333133313211231211331323133313232212132333131331   <<    C11112331312111112111133133313331333132112312113313231333132322121323331313313   >>      C11112331312111112111133133313331333132112312113313231333132322121323331313312   >>