1. Ask user for an input say 'n'. User should enter a value 20 for n. And then pass this value as an argument to a function that performs step2.

2. Write a loop to subtract the first 'n' natural numbers in a reverse order, that is calculate: ANSWER = n - (n-1) - (n-2) - (n-3) - ..... -3 -2 -1 Then return the ANSWER.

3. Print the output on console.

4. Exit the program

write in Assembly RISC V code

I need the compiled MIPS code please.