section .data
    prompt db "Enter age: ", 0
    eligible db "Eligible", 0
    not_eligible db "Not Eligible", 0
 
section .bss
    age resb 2       ; Reserve 2 bytes for the age input
 
section .text
    global _start
 
_start:
    ; Print the prompt "Enter age: "
    mov eax, 4       ; syscall number for sys_write
    mov ebx, 1       ; file descriptor (stdout)
    mov ecx, prompt  ; address of prompt message
    mov edx, 11      ; length of prompt
    int 0x80         ; interrupt to invoke the syscall
 
    ; Read the user's input
    mov eax, 3       ; syscall number for sys_read
    mov ebx, 0       ; file descriptor (stdin)
    mov ecx, age     ; buffer to store input
    mov edx, 2       ; read 2 bytes (including newline)
    int 0x80         ; interrupt to invoke the syscall
 
    ; Convert ASCII to integer
    movzx eax, byte [age] ; move age input to eax
    sub eax, '0'     ; convert ASCII character to integer
 
    ; Compare age with 18
    cmp eax, 18
    jl not_eligible_case ; jump if age is less than 18
 
eligible_case:
    ; Print "Eligible"
    mov eax, 4
    mov ebx, 1
    mov ecx, eligible
    mov edx, 8
    int 0x80
    jmp exit_program   ; jump to exit
 
not_eligible_case:
    ; Print "Not Eligible"
    mov eax, 4
    mov ebx, 1
    mov ecx, not_eligible
    mov edx, 13
    int 0x80
 
exit_program:
    ; Exit the program
    mov eax, 1       ; syscall number for sys_exit
    xor ebx, ebx     ; exit status 0
    int 0x80
 

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