$$ Please solve:A $16$ in $($gross dimension$)$ square, tied column must carry $220$ kip dead and $250$ kip live loads. The dead load includes the column of self$-$weight. The column is not exposed to any moments. Sidesway is prevented at the top, and slenderness effects are to be disregarded. The concrete compressive strength is $4000$ lbf$/$in$2,$ and the steel tensile yield strength is $60,000$ lbf$/$in$2.$ The longitudinal reinforcement of this column is most nearly