файлы_2

#include <fstream>
using namespace std;
int main()
{
    int cnt = 0;
    int x, y, z;
    ifstream in("input.txt");
    ofstream out("output.txt");
    while (in.peek() != EOF)
    {
        int t;
        in >> t;
        cnt++;
        if (cnt == 1)
            x = t;
        if (cnt == 2)
            y = t;
        if (cnt == 3)
        {
            z = t;
            cnt = 0;
            if (x % 2 == y % 2 && x % 2== z % 2)
                out << x << " " << y << " " << z << endl;
        }
    }
    in.close();
    out.close();
}