Determine the correct pivot element for the following simplex tableau.

$$\displaystyle\left[\begin{array}{rrrrr|r} P&x_1&x_2&s_1&s_2&\scriptscriptstyle\text{RHS}\cr0 &0 &0 &1 &20 &39 \cr 0 &1 &20 &0 &-12 &29 \cr \hline 1 &0 &-3 &0 &-8 &150 \cr \end{array}\right]$$

Pivot row number (1, 2, or 3) =
Pivot column number (1, 2, 3, 4, 5, or 6) =