diy.py

with open(r'C:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')as file:
    a=file.readlines()
for i in a:
    data=i.split()
    sum=0
    for sales in data[1:]:
        sum=sum+int(sales)
    result=data[0]+str(sum)
    print(result)