A 14 -in.-diameter steel pipe pile is driven $50 \mathrm{ft}$ isto overconsolidated clays having the following properties: From zero to $20 \mathrm{ft}$ depth the cobesion is 1,500 pof and the soil unit weight is 110 pef; below $20 \mathrm{ft}$, the cohesion is 2,500 psf and the soil unit weight is $120 \mathrm{pel}$. Using the a-method, calculate the downward and upward axial capscity of the pilc, applying a factor of safety of 3 (downward and upward).