#include <iostream>
#include <string>
#include <set>
#include <time.h>
#define NUMBSIZE 4
#define f(i,a,b) for (i = a; i < b; ++i)
using namespace std;
int comparator(string src, string dest) {
    int i;
    int cnt = 0;
    f(i, 0, NUMBSIZE)
        if (src[i] == dest[i])
        {
            cout << '+';
            ++cnt;
        }
        else
            cout << '-';
    return cnt;
}
string createNumber() {
    int i,j;
    bool flag = true;
    set<char> uniqueSymbols;
    string ret;
    while (flag) {
        ret = "";
        f(i, 0, NUMBSIZE)
            ret += to_string(rand() % 10);
        f(j, 0, NUMBSIZE)
            uniqueSymbols.insert(ret[j]);
        if (uniqueSymbols.size() == 4 && ret[0] != '0')
            flag = false;
        uniqueSymbols.clear();
    }
    return ret;
}
int main() {
    srand(time(NULL));
    string src = createNumber();
    string comp;
    int health;
    cout << "enter your number\n";
    do
    {
        health = 4;
        cin >> comp;
        health -= comparator(src, comp);
        cout << '\n';
    } while (health > 0);

}