diff --git a/main.py b/main.py
index 2037ad7966adfd6eb0456f6fd4a427872d7c8bfa..4f6231926500a3cf01b6e056375ae1c42d53ccc2 100644
--- a/main.py
+++ b/main.py
@@ -14,15 +14,20 @@ def correct_list(len_list: int, p: polynome):
 
 if __name__ == "__main__":
 	l = [115, 117, 101, 118, 122, 116, 57, 108, 32, 224, 62, 116, 115, 140, 32, 108, 153, 83, 169, 117, 108, 112, 32, 110, 101, 55, 96, 61, 160, 218, 228, 156, 224, 203, 12, 75, 180, 23, 220, 211, 137, 139, 206]
+	
+	# PARAMETRES
+	# Variables dans reed_solomon.py
+	INDEX_MAX 	= 20
+	ERROR_MAX 	= 9
+	MSG_LEN 	= 25
+
+	# Find the correct polynom 
 	reed_solomon = reed_decode(l)
 
 	l_ok = correct_list(len(l), reed_solomon)
 
-	print(l)
-	print(l_ok)
-
-	print("".join(map(chr, l[:25])))
-	print("".join(map(chr, l_ok[:25])))
+	print("Message recu   : " + "".join(map(chr, l[:MSG_LEN])))
+	print("Message décodé : " + "".join(map(chr, l_ok[:MSG_LEN])))
 
 
 	
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diff --git a/reed_solomon.py b/reed_solomon.py
index de9a566ba318b7a586c8f802bee31ed80214de3d..ea424ed0c6e881c3cda3489d8c5f69751a6fdbca 100644
--- a/reed_solomon.py
+++ b/reed_solomon.py
@@ -3,6 +3,13 @@ from polynome import *
 from inverse_mult import *
 from itertools import combinations
 
+
+# Global Variables
+# Parameters
+INDEX_MAX = 20
+ERROR_MAX = 9
+
+
 def get_possibilities(l_og: list, index: int):
 	l = l_og.copy()
 	# Transforme the list in list of tupples with their indexes
@@ -43,9 +50,9 @@ def check_nb_error(l: list, p: polynome) -> int:
 
 
 def reed_decode(l: list) -> polynome:
-	for points in get_possibilities(l, 20):
+	for points in get_possibilities(l, INDEX_MAX):
 		err = check_nb_error(l, lagrange_compute(points))
-		if ((err) <= 9):
+		if ((err) <= ERROR_MAX):
 			# ? Chercher un polynome avec moins de 9 erreurs ?
 			# Possibilité d'optimiser en evitant de compute 2 fois le poly
 			return lagrange_compute(points)
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