Update app.py

app.py

@@ -10,4 +10,14 @@ def build(size=5):
             
         print(ro)
         r+=size
+        
+    box=[]
+    box_cent=int(tot/2)
+    num_h,num_v=0,0
+    for i in range(1,tot):
+        box[box_cent]=i
+        num_h=0-1
+        box_cent+=(num_h+num_v)
+        print(box)
+        
 build()