C111123313121111121111331333133313331323232133113313231333131133132222123112311   >>    C11112331312111112111133133313331333132323213311331323133313113313222212311231   <<    C111123313121111121111331333133313331323232133113313231333131133132222123112313   >>      C111123313121111121111331333133313331323232133113313231333131133132222123112312   >>