How to Difference in Assembly - Code Snippet

How to perform 'Difference' in Assembly.

example.asm
; Task: Difference
; Language: Assembly

section .text
global _start
_start:
	; Implementation for Difference
	; TODO: Implement core logic here
	; Step 1: Prepare data
	; Step 2: Process Difference
	mov eax, 1
	int 0x80
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