If $\mathrm{x},\mathrm{y},\mathrm{z}$ are integers in A.P lying between 1 and 9 and $\mathrm{x}51, \mathrm{y}41$ and $\mathrm{z}31$ are three digit number then the value of

$\left|\begin{array}{ccc}5& 4& 3\\ \mathrm{x}51& \mathrm{y}41& \mathrm{z}31\\ \mathrm{x}& \mathrm{y}& \mathrm{z}\end{array}\right|$ is