In this case if someone enters 1,000,000 to be the number of litres to be purchased, how would you design your program to handle this type of input data? Describe simply in some words

Sell-More-Petrol (the client) has contracted you to write a program to be used at their petrol stations. The program must allow the customer to enter the number of litres of petrol they wish to purchase. (You may assume the customer starts off with no petrol, and that Sell-MorePetrol likes to make a large profit so they sell their petrol at $1.75 per litre.) Then, for each litre of petrol up to the quantity that the customer has entered, the program must display a running total