#include
#include
#include

using namespace std;

int main()
{
int ilksayi = 123;
int sonsayi = 456789;
int arasayi = 0;

cout << ilksayi;

srand((unsigned)time(NULL));

for(int i=0;i<=10;i++) {
arasayi=rand()%10;
cout << arasayi;
}

cout << sonsayi << endl;

return 0;
}
Örnek çıktı:
12361023613407456789