#include <iostream>
#include <ctime>

using namespace std;

int const n = 4;

void fillrand(int a[]) {
    a[0] = rand() % 8 + 1;
    for (int i = 1; i < n; ++i) {
        a[i] = rand() % 9;
    }
}

void print(int a[]) {
    for (int j = 0; j < n; ++j) {
        cout << a[j];
    }
    cout << endl;
}

void write(int a[]) {
    int k;
    cin >> k;
    for (int j = n - 1; j > -1; --j) {
        a[j] = k % 10;
        k /= 10;
    }
}

void check(int comp[], int hum[]) {
    int bulls = 0, cows = 0;
    while (true) {
        for (int i = 0; i < n; ++i) {
            if (hum[i] == comp[i]) {
                ++bulls;
            }
        }
        if (bulls == 4) {
            cout << "Victory!";
            break;
        }
        for (int i = 0; i < n; i++) {
            int k = i;
            for (int j = 0; j < n; ++j) {
                if (hum[k] == comp[j]) {
                    ++cows;
                    break;
                }
            }
        }
        cout << "bulls: " << bulls << endl << "cows: " << cows << endl;
        cout << "Try again, please: ";
        write(hum);
        bulls = 0;
        cows = 0;
    }
}

int main() {
    srand(time(NULL));
    int number[n], arry[n];
    fillrand(number);
    //print(number);
    cout << "Number guessed try guessing it!" << endl << "Your number: ";
    write(arry);
    print(arry);
    check(number, arry);
    return 0;