save project

diy.py

 with open(r'c:\Users\003\Documents\lesson13-3\sales_list.txt','r',encoding='utf-8')as aa:
     bb=aa.readlines()
-    bb.split(bb='')
+    
     for i in bb:
-        print(i[0])
-        print(i[1:])
\ No newline at end of file
+        print(i)
+        data=i.split(i='')
+        s=0
+        for sales in data[1:]
+            s=s+int(sales)
+        r=data[0]+str(s)
+        print(r)