Update app.py

app.py

@@ -1261,14 +1261,14 @@ def handle_generation(h,w,d):
     pxs = h*w
     if pxs > 4 * (10 ** 6):
         difficulty_points + 3
-    else if pxs > 3 * (10 ** 6):
+    elif pxs > 3 * (10 ** 6):
         difficulty_points + 2
-    else if pxs > 2 * (10 ** 6):
+    elif pxs > 2 * (10 ** 6):
         difficulty_points + 1
 
     if difficulty_points < 2:
         return easy_generation(h,w,d)
-    else if difficulty_points < 4:
+    elif difficulty_points < 4:
         return balanced_generation(h,w,d)
     else:
         return hard_generation(h,w,d)