global _main
extern _printf

section .text
_main:
    mov eax, age
    mov ebx, days
    imul eax, ebx
    push eax
    mov ecx, msg
    push ecx
    call _printf
    add esp, 8
    xor eax, eax
    ret

section .data
    age db 12h
    days dd 16Dh
    msg db "%i", 0