XOR in LC$-3$ binary code

Write a sequence of LC$-3$ instructions $($in bits$)$ to set R$1$ equal to R$3$ XOR R$4.$ Assume that values have already been placed into R$3$ and R$4$ for you. You may not change the values of any other registers $($only R$1,$ R$3,$ and R$4).$ Include RTL or assembly comments explaining the action of each binary instruction. Hints: You MAY change R$3$ and R$4.$ You should only need eight instructions.