input_string = input() keyhole = input() res =[] dict = {} alpha = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'] key_word = [] for c in input_string: if not c in key_word: key_word.append(c.lower()) for a in alpha: if not ...