set pagination off

disassemble main

break *main+22
run

x/4xb $rbp-4

printf "picoCTF{0x%02x%02x%02x%02x}\n", \
    *(unsigned char *)($rbp-4), \
    *(unsigned char *)($rbp-3), \
    *(unsigned char *)($rbp-2), \
    *(unsigned char *)($rbp-1)

continue
exit
