tadd

#include <iostream>
#include <cstdlib>
using namespace std;
int operacion(int x)
{
    int y;
    static const int primes[] = {
	2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41,
	43, 47, 53, 59, 61, 67, 71, 79, 83, 89, 97
    };