Consider a sequential pay CMO that is backed by 60 mortgages with average balance of $100,000 each. The mortgages have monthly payments with WAM = 15 years and WAC = 8%. There is a servicing fee of 0.3% and prepayment is according to 100% PSA. There are two tranches in this CMO: tranch A issued for $4,000,000 and tranche B issued the rest of the amount. How much cash flow do investors in tranche A receive in the first month?