In 2022, a company made cash payments of Tk. 6 crore for salaries, Tk. 2 crore for interest expenses and Tk. 4 crore for income taxes as operating activities. Based only on the information given in the table, compute cash received from customers and cash paid to suppliers and the company's operating cash flow for 2022 :

Tk. crore	2021	2022
Revenue	42	37
Cost of Goods sold	18	16
Inventory	36	40
Accounts Receivable	22	19
Accounts Payable	14	12