diff --git a/main.py b/main.py
index de36a74..1cd7fbe 100644
--- a/main.py
+++ b/main.py
@@ -42,8 +42,9 @@ try:
             _subject = user_input[1]
             subject_get = subject.get_subject(subjects, _subject)
             user_IO.user_output(subject_get.return_average_subject)
+        elif input_or_output == "exit":
+            break
     raise SystemError
 
 except Exception as e:
     print('ERROR' + str(e))
-
diff --git a/user_IO.py b/user_IO.py
index 2f31563..bc1ea2e 100644
--- a/user_IO.py
+++ b/user_IO.py
@@ -1,5 +1,5 @@
 def user_input():
-    todo = input("Ok, do you want to see them or to edit them [see/edit]?\n")
+    todo = input("Ok, do you want to see them or to edit them [see/edit/exit]?\n")
     if todo == "see":
         print("Which subject do you want to know the information?")
         subject = input()
@@ -31,6 +31,8 @@ def user_input():
             grade = input("Grade? \n")
             grade_name = input("What's the name of the grade? \n")
             return "input", "grade", subject, category, grade, grade_name
+    elif todo == "exit":
+        return "exit"
 
 
 def user_output(subject, categories, average, average_subject):
@@ -43,6 +45,7 @@ def user_output(subject, categories, average, average_subject):
         print(string + "\n")
         print("The average of {} is {}.".format(subject, average_subject))
 
+
 def password():
     print("What is your password?")
-    return input()
\ No newline at end of file
+    return input()