When the addEM() function is called or executed, there will be no output displayed because there is no print statement.
When the function addEM(x, y, z) is called with the values 20 for each of its parameters (x, y, and z), it calculates their sum (20 + 20 + 20), which equals 60. Since the function uses the return keyword to return this calculated sum, calling addEM(20, 20, 20) will return 60.