diff --git a/qualdev/debog/exo5.ts b/qualdev/debog/exo5.ts
new file mode 100644
index 0000000000000000000000000000000000000000..e4e9d2601202c79cecc81382b134467bb7da0eaa
--- /dev/null
+++ b/qualdev/debog/exo5.ts
@@ -0,0 +1,12 @@
+let j = 10;
+deb4();
+console.log(j);
+
+function deb4(): number {
+    let j = 25;
+    for (let i = 0; i < 10; i++) {
+        let j = 2 * i;
+        console.log(j);
+    }
+    return j;
+}
\ No newline at end of file