C111123313121111121111331323133313331333132322133313233313331313311   >>    C11112331312111112111133132313331333133313232213331323331333131331   <<    C111123313121111121111331323133313331333132322133313233313331313313   >>      C111123313121111121111331323133313331333132322133313233313331313312   >>