diff --git a/dm2/dm2.c b/dm2/dm2.c
index 2f2bbe8..c8b7c23 100644
--- a/dm2/dm2.c
+++ b/dm2/dm2.c
@@ -34,8 +34,8 @@ int ecartmin(int t[], int size) {
 
 // Returns 0 if no integer has been detected
 int extraire(char str[]) {
-    while ((*str != '-' || (str[1] <= '0' || str[1] >= '9')) &&
-           (*str <= '0' || *str >= '9')) {
+    while ((*str != '-' || (str[1] < '0' || str[1] > '9')) &&
+           (*str < '0' || *str > '9')) {
         if (*str == 0) {
             return 0;
         }
@@ -119,8 +119,8 @@ bool palindrome2(char str[]) {
 int sommeentiers(char str[]) {
     int count = 0;
     while (true) {
-        while ((*str != '-' || (str[1] <= '0' || str[1] >= '9')) &&
-               (*str <= '0' || *str >= '9')) {
+        while ((*str != '-' || (str[1] < '0' || str[1] > '9')) &&
+               (*str < '0' || *str > '9')) {
             if (*str == 0) {
                 return count;
             }
diff --git a/dm2/dm2_borring.c b/dm2/dm2_borring.c
index 9f4d2a6..dc5d999 100644
--- a/dm2/dm2_borring.c
+++ b/dm2/dm2_borring.c
@@ -1,5 +1,6 @@
 // This is a modified version of the dm that sticks with what
 // we are allowed to do (no fancy pointer arithmetic)
+#include "test_dm1.h"
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdio.h>
@@ -37,8 +38,8 @@ int ecartmin(int t[], int size) {
 // Returns 0 if no integer has been detected
 int extraire(char str[]) {
     int i = 0;
-    while ((str[i] != '-' || (str[i + 1] <= '0' || str[i + 1] >= '9')) &&
-           (str[i] <= '0' || str[i] >= '9')) {
+    while ((str[i] != '-' || (str[i + 1] < '0' || str[i + 1] > '9')) &&
+           (str[i] < '0' || str[i] > '9')) {
         if (str[i] == 0) {
             return 0;
         }
@@ -125,8 +126,8 @@ int sommeentiers(char str[]) {
     int count = 0;
     int i = 0;
     while (true) {
-        while ((str[i] != '-' || (str[i + 1] <= '0' || str[i + 1] >= '9')) &&
-               (str[i] <= '0' || str[i] >= '9')) {
+        while ((str[i] != '-' || (str[i + 1] < '0' || str[i + 1] > '9')) &&
+               (str[i] < '0' || str[i] > '9')) {
             if (str[i] == 0) {
                 return count;
             }