C111123313121111121111331333133313331333133313121111113313331333133313221313221   >>    C11112331312111112111133133313331333133313331312111111331333133313331322131322   <<    C111123313121111121111331333133313331333133313121111113313331333133313221313223   >>      C111123313121111121111331333133313331333133313121111113313331333133313221313222   >>