C language only. not C++

Below is the stock layout coordinate proposed by Wellwart Supermart. You are requested to design a checkout system for the supermart. Inputs are the column and row coordinate, required quantity. Outputs are the item name, availability stocks, price per unit, and total price during checkout. If the inserted quantity is more than available quantity, massage "not enough stock, please select again the quantity". Black sugar Coordinate [1] [2] [3] [5] [A] *Maggi mee Cintanmee Sardin Mee hoon Kueh teow Qty:19 Qty:20 Qty:5 Qty:3 Qty:1 RM:4.50 RM:3.50 RM:4.50 RM:4.50 RM:4.50 [B] Lemon juice **Milo Horlicks Vicco **Coffee Qty:20 Qty:12 Qty:2 Qty:8 Qty:5 RM:2.50 RM:11.50 RM:14.50 RM:12.50 RM:10.50 [C] Chocolate *White Ginger Chilli powder powder Sugar Qty:19 powder Qty:8 Qty:10 Qty:18 RM:4.50 Qty:20 RM:6.50 RM:9.50 RM:4.50 RM:5.50 [D] **Crab Prawn *Squid Scallop Fishball Qty:12 Qty:0 Qty:11 Qty:2 Qty:16 RM:9.50 RM:18.90 RM:4.50 RM:12 RM:5.50 [E] Potato Garlic Sawi Carrot *Mushroom Qty:10 Qty:5 Qty:4 Qty:1 Qty:12 RM:3.50 RM:6.50 RM:2.80 RM:1.50 RM:6.50 Note: If you are Wellmart supermarket registered member, you will get 10% (*)& 5%(**) discount for selected item