diff --git a/wordle.py b/wordle.py
index 417306c..322c171 100644
--- a/wordle.py
+++ b/wordle.py
@@ -1,3 +1,5 @@
+#!/bin/env python
+
 import random
 
 def getw():
@@ -12,16 +14,20 @@ def getw():
     return palabra
 
 def word(palabra):
+    used_char = []
     hp = 5
     while hp != 0:
         print('Enter a 5-letter word: ')
         guess = input()
+        print('\n')
         guess = guess.lower()
         if len(guess) != 5:
             print('That word has ' + str(len(guess)) + ' letters instead of 5!\n')
             continue
         else:
             for x in guess:
+                if x not in used_char:
+                    used_char.append(x)
                 if x not in palabra:
                     guess = guess.replace(x, '_')
             i = 0 
@@ -30,10 +36,15 @@ def word(palabra):
                 break
             while i != 5:
                 if guess[i] == palabra[i]:
-                    guess = guess.replace(guess[i], guess[i].upper())
+                    guess = guess[:i] + guess[i].upper() + guess[i+1:]
                 i += 1
             print(guess)
             hp -= 1
+        msg = '\nUsed characters: ' + str(used_char) + '\n'
+        msg = msg.replace('[', '')
+        msg = msg.replace(']', '')
+        msg = msg.replace("'", '')
+        print(msg)
     if hp == 0:
         print('u lost! the word was ' + palabra + ' :(')
 hint = '_ _ _ _ _'