while True: try: num_name = int(input()) name_list=[] for i in range(num_name): name = str(input()).lower() name_character_list = list(set(name)) sorted_character_list = sorted(name_character_list,key=lambda x: name.count(x),reverse=True) beauty_score =0 for i,character in enumerate(sorted_character_list): beauty_score = beauty_score + name.count(character)*(26-i) print(beauty_score) except: break