diff --git a/qualdev/debog/exo1.ts b/qualdev/debog/exo1.ts
new file mode 100644
index 0000000000000000000000000000000000000000..c85c2b222ede1e2976b8049ad37f760b7d312d4b
--- /dev/null
+++ b/qualdev/debog/exo1.ts
@@ -0,0 +1,8 @@
+function deb1(): number{
+    let j = 200;
+
+    for (let i=0; i<10; i++){
+        j -= 10;
+    }
+    return j;
+}
\ No newline at end of file