section .data
message db 0x53^0x20, 0x6F^0x20, 0x2C^0x20, 0x77^0x20, 0x68^0x20, 0x61^0x20, 0x74^0x20, 0x20^0x20
db 0x64^0x20, 0x69^0x20, 0x64^0x20, 0x20^0x20, 0x79^0x20, 0x6F^0x20, 0x75^0x20, 0x20^0x20
db 0x77^0x20, 0x61^0x20, 0x6E^0x20, 0x74^0x20, 0x20^0x20, 0x74^0x20, 0x6F^0x20, 0x20^0x20
db 0x73^0x20, 0x65^0x20, 0x65^0x20, 0x20^0x20, 0x68^0x20, 0x65^0x20, 0x72^0x20, 0x65^0x20
db 0x3F, '$'

section .text
global _start

_start:
mov ah, 09h
mov dx, message
int 21h

mov ax, 4C00h
int 21h