If the square of the shortest distance between the lines \(\displaystyle \frac{x-2}{1} = \frac{y-1}{2} = \frac{z+3}{-3} \) and \(\displaystyle \frac{x+1}{2} = \frac{y+3}{4} = \frac{z+5}{-5} \) is \(\displaystyle \frac{m}{n} \), where \( m, n \) are coprime numbers, then \( m + n \) is equal to:
