diff --git a/td_debug.ts b/td_debug.ts
new file mode 100644
index 0000000000000000000000000000000000000000..497b858c691f82cf56bc211f7635f079b8b3385d
--- /dev/null
+++ b/td_debug.ts
@@ -0,0 +1,10 @@
+//exercice1
+function deb1(): number {
+  let j = 200;
+  for (let i = 0; i < 10; i++) {
+    j -= 10;
+  }
+  return j;
+}
+
+console.log(deb1());