#include <ctime>
#include <iostream>
using namespace std;
int gen[4];
int main()
{
    int i=0;
    srand(time(NULL));
    do{
     gen[i] = rand() % 9+1;
     i++;
    }while((gen[1]==gen[2])or(gen[2]==gen[3])or(gen[1]==gen[3])or(gen[1]==gen[4])
     or(gen[3]==gen[4])or(gen[4]==gen[2]));
     cout<<gen[1]<<gen[2]<<gen[3]<<gen[4];
     system("pause");
}