- This is an example of file input for only one customer’s transactions. Some shopping lists consistof only 1 item type, while others may be very lengthy.- Although not shown in this example, each customer’s data is assigned a Customer Receipt number(# 98 in this case – see Use-Case 4).- Each customer’s list is terminated (i.e. delimited) by a Code value of 000 (or just 0).- The formatting of numeric input values is left to each programmer to define and code.