C111123313121111121111331333133313331323232133113313231333131121131213311   >>    C11112331312111112111133133313331333132323213311331323133313112113121331   <<    C111123313121111121111331333133313331323232133113313231333131121131213313   >>      C111123313121111121111331333133313331323232133113313231333131121131213312   >>