Update app.py

app.py

@@ -124,9 +124,9 @@ def sort_doc(text,steps_in=0,control=None):
                     for ii,ev in enumerate(step_cont_box):
                         if go:
                             if ev >= char_len-1:
-                                step_cont_box[str(ii)]=0
+                                step_cont_box[ii]=0
                                 if go1==True:
-                                    step_cont_box[str(ii-1)]=step_cont_box[ii-1]+1
+                                    step_cont_box[ii-1]=step_cont_box[ii-1]+1
                                     go1=False
                     cnt=1
                 else: