section .data
	msg db 'The difference is:', 10   
	msgLen  equ $-msg    
	num1 db  56H
	num2 db  46H 
section .bss
	sum resb 1
	temp resb 1			
section .text
global _start
_start:
         mov rax,1         	
         mov rdi,1 
         mov rsi,msg 
         mov rdx, msgLen  
         syscall		 	                    
mov al,byte[num1]         
sub al,byte[num2]                    
mov byte[sum],al   
mov bp,2
up:rol al,4
      mov bl,al
      and al,0Fh
      cmp al,09
      jbe down
     add al,07h
    down:Add al, 30h
      Mov byte[temp],al 
       mov rax,1         	 
      mov rdi,1  
      mov rsi,temp 
      mov rdx, 1  
       syscall	
      mov al,bl
     dec bp
     jnz up
mov rax,60    
mov rdi,0      
syscall