For a country, its national output or income (Y) follows a Cobb-Douglas function as below. For example, the function in 2021 is Yz021 - 26°21- Here K indicates total capital input and Lis total labor input. And we have a -0.5. (a) What is the share of capital and labor of total national income? If K is 64 and L is 121, how much is the total output in 2021?