.text
main: li $v0, 5 # read integer from input. The read integer will be stroed in $v0
syscall
beq $v0, 0, is1
beq $v0, 1, is1
li $s4, 1 # the counter which has to equal to $v0
li $s0, 1
li $s1, 1
loop: add $s2, $s0, $s1
addi $s4, $s4, 1
beq $v0, $s4, iss2
add $s0, $s1, $s2
beq $v0, $s4, iss0
add $s1, $s2, $s0
beq $v0, $s4, iss1
b loop
iss0: move $a0, $s0
b print
iss1: move $a0, $s1
iss2: move $a0, $s2
is1: li $a0, 1
print: li $v0, 1
li $v0, 10
