C1111233131211111211113313331333133313331313221131211113313223321111331   >>    C111123313121111121111331333133313331333131322113121111331322332111133   <<    C1111233131211111211113313331333133313331313221131211113313223321111333   >>      C1111233131211111211113313331333133313331313221131211113313223321111332   >>