he went through four matches before he 'd ascribed the appropriate letters to the numbers : 18 -- 1 -- -4 -- 9 -- 5 -- 4 -- 19 -- 1 -- 12 -- 4 -- 23145 r-ad-ie-d-sa-l-dw-n-e once that was done , though , it did n't take long to unscramble the code .