7. Exercises: 1- Modify the program to sum the following vector, then trace the execution of your program and verify that it actually produces the desired value: 10, 20, 30, 40, 50 2- As we will explore, in more detail, in the next lab, MIPS provides an programming interface to do 1/0 operations. To output the sum value from our first program to the display, you can use the following code: li $v0, 1 lw $a0, SUM syscall modify your program and add the above lines. Run your program and verify that it displays the stored value of SUM. Can you skip loading the SUM value from memory and display the register value? Why would you do that