in this challange, we need to give in argv[1] 0x1337c0de.
0x1337c0de
i simply run this command: /maze/maze3 $(echo -e '\xde\xc0\x37\x13')
/maze/maze3 $(echo -e '\xde\xc0\x37\x13')
Flag: vghylBpihH
vghylBpihH