extern printf
extern fflush
extern scanf

section .data
    fmt db "%d", 0
    fmtprint db "%d",10,0

section .bss
    input resd 1

section .text
    global main

main:
    push input
    push fmt
    call scanf
    add esp, 8

    mov ecx,[input]
    mov eax,1

loop1:
    mov ebx,2
    mul ebx
    loop loop1


    push eax
    push fmtprint
    call printf
    add esp,8


exit:
    push 0
    call fflush
    mov eax, 1
    mov ebx, 0
    int 0x80