void glue2(struct Png *image, struct Png *image2, int width_pixel) {
    png_byte *new_row, img2_row, img2_ptr;
    int new_height, new_width;
//    int new_width = image->width + image2->width;
    if (image->height > image2->height)
        new_height = image2->height;
    else
        new_height = image->height;

    if (image->width > image2->width)
        new_width = image2->width;
    else
        new_width = image->width;

    png_byte **new_mas = (png_byte **) malloc(sizeof(png_byte * ) * new_height);
    for (int y = 0; y < new_height; y++)
        new_mas[y] = (png_byte *) malloc(sizeof(png_byte) * new_width * width_pixel);

    for (int x = 0; x < new_width; x++) {
        for (int y = 0; y < new_height; y++) {
            new_row = new_mas[y];
            png_byte *new_ptr = &(new_row[x * width_pixel]);
            png_byte *img1_row = image->row_pointers[y];
            png_byte *img1_ptr = &(img1_row[x * width_pixel]);
            png_byte *img2_row = image2->row_pointers[y];
            png_byte *img2_ptr = &(img2_row[x * width_pixel]);
            if (x % 2 == 0) {
                new_ptr[0] = img1_ptr[0];
                new_ptr[1] = img1_ptr[1];
                new_ptr[2] = img1_ptr[2];
            } else {
                new_ptr[0] = img2_ptr[0];
                new_ptr[1] = img2_ptr[1];
                new_ptr[2] = img2_ptr[2];
            }
        }
    }
    image->row_pointers = new_mas;
    image->width = new_width;
    image->height = new_height;
}