public IHttpActionResult GetCoordinatesFromRowAndColumn(char row, int column)
        {
            var triangle    = new TriangleImage();
            var coordinates = triangle.GetCoordinates(row, column);

            return(Ok(coordinates));
        }
        public IHttpActionResult GetRowAndColumnFromCoordinates([FromBody] Coordinates coordinates)
        {
            var triangle = new TriangleImage();


            var rowAndColumn = triangle.GetRowAndColumn(coordinates);

            return(Ok(rowAndColumn));
        }