The Initial dictionary contains a total of 910 different alphanumeric combinations.
In order to expand my dictionary, I made two variation on all the elements of the list. 1. I swapped the case "one" letter at a time in each password and added the new combination formed in my list. 2. I swapped the case of all the letters of a combination at once and added the new combination in my list.
After that in order to avoid any repitition of combinations, I converted the final list(after variation) into a set.
Hence, my final dictionary list contains a total of 6661 different combinations.