If the determinant $\left|\begin{array}{ccc}x+a & p+u & 1+f \\ y+b & q+v & m+g \\ z+c & r+w & n+h\end{array}\right|$ splits into exactly $\mathrm{K}$ determinants of order 3 , each element of which contains only one term, then the value of $K$ is 8 .