1. Write a function to read the text from the input file ‘input. txt’ (on Piazza) and place it in a buffer. A buffer of 80 bytes is more than enough. Before you call your function, set $a0 equal to the address of the filename and $a1 to the address of the buffer where data is stored. The function should return the number of bytes read in $v0. In the main program, print an error message and terminate the program if $v0 <= 0. 2. Write a function to extract integers from the text input buffer and store them in an array of 20 words. Before the function, set $a0=address of the array, $a1=20, $a2 the address where the buffer starts.