#include <iostream>
#include <ctime>
#include <cstdlib>

using namespace std;

class mas {
public:
    int * data;
    int size;

    mas(int size, int lower, int upper) {
        data = new int[size];
        this->size = size;

        for (int i = 0; i < size; i++) {
            data[i] = (rand() % (upper - lower + 1)) + lower;
        }
    }

    ~mas() {
        delete[] data;
    }

    void out() {
        for (int i = 0; i < size; i++) {
            cout << data[i] << " ";
        }
        cout << endl;
    }

    void do_it() {
        for (int i = 1; i < size - 1; i++) {
            if (data[i] % 2 == 0) {
                data[i] += data[0];
            }
        }
    }
};

int main()
{
    srand(time(0));
    mas array(10, -100, 100);
    array.out();
    array.do_it();
    array.out();
}