<s>[INST] This problem introduces the concept of hangman game. Suppose that we are guessing some words. We are allowed to make some mistakes. The maximum number of mistakes we can make is the length of the word. We will guess the word by suggesting letters. For each letter we guess, if it is in the word, we can fill the corresponding blanks with the letter. The goal is to guess the word with the fewest mistakes possible. This problem asks you to write a program to play a hangman game.[/INST]