diff --git a/d03/exemple1.txt b/d03/exemple1.txt
new file mode 100644
index 0000000..624ea4f
--- /dev/null
+++ b/d03/exemple1.txt
@@ -0,0 +1,10 @@
+467..114..
+...*......
+..35..633.
+......#...
+617*......
+.....+.58.
+..592.....
+......755.
+...$.*....
+.664.598..
\ No newline at end of file
diff --git a/d03/exemple3.txt b/d03/exemple3.txt
new file mode 100644
index 0000000..4525d47
--- /dev/null
+++ b/d03/exemple3.txt
@@ -0,0 +1,4 @@
+467..114..
+...*......
+..35..633.
+......#...
\ No newline at end of file
diff --git a/d03/run1.py b/d03/run1.py
new file mode 100644
index 0000000..f36cf16
--- /dev/null
+++ b/d03/run1.py
@@ -0,0 +1,36 @@
+import sys
+
+myList = list(list(map(str,s)) for s in sys.stdin.read().splitlines())
+
+def if_symbol_adj(l, n, i):
+    for m in [n-1, n, n+1]:
+        if m < 0 or m > len(l)-1: continue
+        for j in [i-1, i, i+1]:
+            if j < 0 or j > len(l[m]): continue
+            if l[m][j] != "." and l[m][j].isdigit() is False: 
+                return True
+            else:
+                pass
+    return False
+
+def main(S = 0):
+    # de haut en bas
+    for n in range(len(myList)):
+        nb = ""
+        if_sum = False
+        # de gauche à droite
+        for i in range(len(myList[n])):
+            if myList[n][i].isdigit():
+                nb = "".join([nb, myList[n][i]])
+                if_sum = if_sum or if_symbol_adj(myList, n, i)
+            else:
+                # soit pas encore un nombre soit la fin
+                print(int(nb), if_sum)
+                S += (int(nb) if nb != "" else 0)
+                if_sum = False
+                nb = ""
+
+    return S
+
+if __name__ == '__main__':
+    print(main()) 
\ No newline at end of file