diff --git a/calculette.py b/calculette.py
index e9a42a9..dc9034a 100644
--- a/calculette.py
+++ b/calculette.py
@@ -36,7 +36,6 @@ class Expression:
             return "("+ str (self.gauche) + "-" + str (self.droite) + ")"
         
         
-        
 if __name__ =="__main__":
     e = Expression('*',
                    Expression(6, None, None),
@@ -62,6 +61,4 @@ class Conversion:
             else:
                 p.empiler ...
         return exp
-        
-        
         
\ No newline at end of file
diff --git a/intergraph.py b/intergraph.py
new file mode 100644
index 0000000..6293be9
--- /dev/null
+++ b/intergraph.py
@@ -0,0 +1,39 @@
+from tkinter import *
+
+fenetre = Tk()
+
+label = Label(fenetre, text="Calculatrice")
+label.grid(row=0, column=0)
+
+# Creating the buttons
+bouton1 = Button(fenetre, text="1")
+bouton1.grid(row=1, column=0)
+
+bouton2 = Button(fenetre, text="2")
+bouton2.grid(row=1, column=1)
+
+bouton3 = Button(fenetre, text="3")
+bouton3.grid(row=1, column=2)
+
+bouton4 = Button(fenetre, text="4")
+bouton4.grid(row=2, column=0)
+
+bouton5 = Button(fenetre, text="5")
+bouton5.grid(row=2, column=1)
+
+bouton6 = Button(fenetre, text="6")
+bouton6.grid(row=2, column=2)
+
+bouton7 = Button(fenetre, text="7")
+bouton7.grid(row=3, column=0)
+
+bouton8 = Button(fenetre, text="8")
+bouton8.grid(row=3, column=1)
+
+bouton9 = Button(fenetre, text="9")
+bouton9.grid(row=3, column=2)
+
+bouton0 = Button(fenetre, text="0")
+bouton0.grid(row=4, column=1)
+
+fenetre.mainloop()
\ No newline at end of file