diy.py

with open(r'C:\\Users\\Administrator\\Documents\\lesson13-1\\sales_list.txt','r',encoding='utf-8') as file:
    a = file.readlines()
    #print(data)
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)