#include<iostream>
#include<conio.h>

#define s(a, b0)printf(a,b0)

int main() {
    char v[20] = "\x91\xf5\x42\x99\x85\x82\xd8\x84\x83\xd9\xc2\xc1\xc0\xc5\xcf\x2c\x5d\xea", o[4] = {0};
    long p = 0x59847853, q = 0x000000FF;
    bool b0 = 0;

    s("Enter a password: ", 0);
    for (int i = 0; b0 != 1; i++) {
        o[i] = (char) _getch();
        p *= o[i];
        putchar(o[i]);

        if (i == 3) {
            for (i = 0; i < 15; i++) {
                for (int k = 0, d = 0; k < 4; k++, d++) {
                    v[i + k] = (char) (v[i + k] ^ ((p >> d) & q));
                }
            }

            if (p == 0x9c5efee3)
                s("\r\n%s\r\n", v);
            else
                s("WRONG!\r\n", 0);
            b0 = 1;
        }
    }
    return 0;
}