Translate the following MIPS function back to equivalent C code:

func:

addi $t0, $zero, 1 # i = 1

addi $v0, $zero, 1 # v = 1

Loop:

sle $t1, $t0, $a0 # set $t1 to 1 if (i <= arg)

beq $t1, $zero, Exit # exit loop if (i > arg)

mul $v0, $v0, $t0 # v *= i

addi $t0, $t0, 1 # i++

j Loop # loop

Exit:

jr $ra