diff --git a/qualdev/main.ts b/qualdev/main.ts
new file mode 100644
index 0000000000000000000000000000000000000000..06cf96f4e282264146f0cc64aa091fe01d48c5e4
--- /dev/null
+++ b/qualdev/main.ts
@@ -0,0 +1,9 @@
+function deb1(): number {
+    let j = 200;
+    for (let i = 0; i < 10; i++) {
+        j -= 10;
+    }
+    return j;
+}
+
+console.log(deb1())
\ No newline at end of file