C111123313121111121111331333133313331323231333133313331333131211111233131   >>    C11112331312111112111133133313331333132323133313331333133313121111123313   <<    C111123313121111121111331333133313331323231333133313331333131211111233133   >>      C111123313121111121111331333133313331323231333133313331333131211111233132   >>