struct point{
     string names;
     int x; int y; int z;
}
void main(string[] args) {

    point a= point();point b= point();point c= point();
    a.names = "First"; a.x = 1; a.y = a.x + 12; a.z = 14;
    b.names = "Second"; b.x = (int)Math.sqrt(7); b.y = a.x * a.y; b.z = b.y + b.x;
    c.names = "Third"; c.x = 542; c.y = a.x; c.z = b.z * a.y + c.y / c.x;

    File file = File.new_for_path ("test.csv");

    FileOutputStream os = file.create (FileCreateFlags.PRIVATE);
    os.write ("%s, %d, %d, %d,\n".printf( a.names, a.x, a.y, a.z).data);
    os.write ("%s, %d, %d, %d,\n".printf( b.names, b.x, b.y, b.z).data);
    os.write ("%s, %d, %d, %d,\n".printf( c.names, c.x, c.y, c.z).data);

    print ("Created.\n");



}