C111123313121111121111331323133313331333132322133313231333131123313331123311   >>    C11112331312111112111133132313331333133313232213331323133313112331333112331   <<    C111123313121111121111331323133313331333132322133313231333131123313331123313   >>      C111123313121111121111331323133313331333132322133313231333131123313331123312   >>