$[20$ points$]$ The cash budget for the first three quarters of the HiCASH$-909$ company is given below $(000$ omitted$).$ The company requires a minimum cash balance of $$5,000$ to start each

quarter. If necessary, the company will borrow money from its bank to maintain this balance. The company will pay no interest in Quarters $1,2,$ and $3.$ It will repay as much of its borrowings as

possible as soon as it has more than $$5\mathrm{.}000$ in cash in a given quarter. Suppose the company starts the first quarter with no bank debt. How much total bank debt does the company expect to

have at the end of the third quarter?