A mixture of benzene and toluene are to be separated in a flash tank. The pressure in the flash tank is 800 mm Hg. The units for Antoines equation are mm Hg and ◦C for pressure and temperature, respectively. xB(Psat B) + (xT)(Psat T) = P
log10(Psat B) = 6.905 − (1211/ (T + 221))
log10(Psat T) = 6.953− (1344/ (T + 219 ))
At what temperature should the tank be operated to get the highest purity toluene in the liquid phase (maximizing xT)?

Write a program that keeps asking the user for new values to be added to a list until the user enters 'exit' ('exit' should not be added to the list). these values entered by the user are added to a list we call 'initial_list'. then write a function that takes this initial_list as input and returns another list with 3 copies of every value in the initial_list. finally, inside print out all of the values in the new list. for example: input: enter value to be added to list: a enter value to be added to list: b enter value to be added to list: c enter value to be added to list: exit output: a b c a b c a b c note how 'exit' is not added to the list. also, your program needs to be able to handle any variation of 'exit' such as 'exit', 'exit' etc. and treat them all as 'exit'.