C111123313121111121111331333133313331323232133113313231333133313223113233231   >>    C11112331312111112111133133313331333132323213311331323133313331322311323323   <<    C111123313121111121111331333133313331323232133113313231333133313223113233233   >>      C111123313121111121111331333133313331323232133113313231333133313223113233232   >>