Boolean Algebra and K-Maps

Simplify the following Boolean function using K-map and draw the circuit of simplified expression using NAND–NAND logic functions only. $$Y = \sum m(0, 1, 4, 6, 7, 8, 12, 15) + d(2, 3, 9, 11)$$

Simplify the following Boolean function using K-map and draw the circuit of simplified expression using NOR–NOR logic function only. $$Y = \sum m(0, 1, 4, 6, 7, 8, 12, 14) + d(2, 3, 9, 10)$$