[Your_Conscience]

#include <cstdlib>
#include <iostream>

using namespace std;

int main(int argc, char *argv[])
{
    int max1st = INT_MIN, max2nd = INT_MIN, h;
    
    while (1) {
          printf("Bitte Zahl eingeben: ");
          scanf("%d", &h);
          if (h >= max1st) {
             max2nd = max1st;
             max1st = h;
          } else if (h > max2nd) max2nd = h;
          if (max1st > INT_MIN) printf("1. groesste Zahl: %d\n", max1st);
          if (max2nd > INT_MIN) printf("2. groesste Zahl: %d\n", max2nd);
    }

    return EXIT_SUCCESS;
}