In the data statement below, only word aa is defined, while bb, cc, dd, ee, and ff are simply placeholders for results, and are initially declared with a value of 0. Data word aa is defined as shown. Divide aa by 9, and store in bb. Subtract bb from aa and store in cc. OR aa and cc and store the results in dd. AND aa and dd and store in ee. XOR dd and ee and store that final result in ff. Output only the value of ff, preceded by a leader that says, "Final answer = ". Stop the program as usual.

A3-mm-thick panel of aluminum alloy (k 177 w/m-k, c 875 j/kg-k and ? = 2770 kg/m) is finished on both sides with an epoxy coating that must be cured at or above t,-150°c for at least 5 min. the production line for the curing operation involves two steps: (1) heating in a large oven with air at ts,0-175°c and a convection coefficient of h, 40 w/m2. k, and (2) cooling in a large chamber with air at 25°c and a con- vection coefficient of he 10 w/m2.k. the heating portion of the process is conducted over a time interval te which exceeds the ime required to reach 150°c by 5 min (h = r + 300 s). the coating has an emissivity of ? = 0.8, and the temperatures of the oven and chamber walls are 175 and 25°c, respectively. if the panel is placed in the oven at an initial temperature of 25°c and removed from the chamber at a safe-to-touch tempera ture of 37°c, what is the total elapsed time for the two-step curing operation?