add $3, $1, $0
addi $4, $0, 4
mflo $4
add $4, $1, $4
addi $4, $4, −4
beq $3, $4, 9
slt $5, $4, $3
bne $5, $0, 7
lw $5, 0($3)
lw $6, 0($4)
sw $6, 0($3)
sw $5, 0($4)
addi $3, $3, 4
addi $4, $4, -4
beq $0, $0, -10
jr $31