I need some help in applying the Gram-Schmidt procedure to the basis {v1; v2; v3} of R^3 ,where where

$\displaystyle v1 = (1; 1; 1) ; v2 = (0; 1; 1) ; v3 = (0; 0; 1);,$in order to obtain an orthogonal basis of R^3 containing (1; 1; 1) and an orthonormal

basis of R^3 containing $\displaystyle (\frac{1}{\sqrt{3}}, \frac{1}{\sqrt{3}} ,\frac{1}{\sqrt{3}}) $