The centroid of a triangle with vertices $A(3,4,5)$,$B(6,7,2)$,and $C(x, y, z)$ is $(3,2,3)$. Then $x+y+z=$

If $A(3, 5), B(-5, -4), C(7, 10)$ are the vertices of a parallelogram,taken in order,then the coordinates of the fourth vertex are:

Three consecutive vertices of a parallelogram $ABCD$ are $A(6, -2, 4)$,$B(2, 4, -8)$,and $C(-2, 2, 4)$. Find the coordinates of the fourth vertex $D$.

If the midpoints of the sides $AB$,$BC$,and $CA$ of a triangle are respectively $D(1, 2, -3)$,$E(3, 0, 1)$,and $F(-1, 1, -4)$,then the centroid of the triangle $ADF$ is

If $D(2, 1, 0)$,$E(2, 0, 0)$,and $F(0, 1, 0)$ are mid-points of the sides $BC$,$CA$,and $AB$ of $\triangle ABC$,respectively,then the centroid of $\triangle ABC$ is

If the points $(2,4,-1), (3,6,-1)$ and $(4,5,1)$ are three consecutive vertices of a parallelogram,then its fourth vertex is