// re4(8).cpp
/* this program generates a random number from a set of given numbers, 20 times */
#include<iostream>
#include<stdlib.h>
#include<strings.h>
using namespace std;
int main()
{
int numbers[] = { 3, 13, 22, 57, 417 };
int length = sizeof(numbers);
for (int aa=1;aa<=20;aa++)
{cout <<numbers[rand()%length]<< endl;}
}