Update app.py

app.py

@@ -20,9 +20,10 @@ def ens2frs(ens1, ens2, ens3):
         results = list(executor.map(fetch_result, tasks))
     frs = []
     for result in results:
-        frs.extend([result[0], result[1]])
-        print(f"Result:{result}, Time taken: {result[1]} seconds")
-        acum += result[1]
+        for r in result:
+            frs.extend(r[0], r[1])    
+            print(f"Result:{r[0]}, Time taken: {r[1]} seconds")
+            acum += r[1]
 
     end_total = time.time()
     duration_total = end_total - start_total