Consider three boxes, each containing 10 balls labeled 1, 2... 10. Suppose one ball is randomly drawn from each of the boxes. Denote by ${\mathrm{n}}_{\mathrm{i}}$, the label of the ball drawn from the   $i^{th}$box, $\left(\mathrm{i}=1,2,3\right)$. Then the number of ways in which the balls can be chosen such that ${\mathrm{n}}_1<{\mathrm{n}}_2<{\mathrm{n}}_3$ is: