Sums in a cuboid

Suppose there is a X x Y x Z 3D matrix A of numbers having coordinates (i, j, k) where 0 ≤ i Input The first line of input will contain the number of test cases ( ≤ 10). That many test cases will follow in subsequent lines. The first line of each test case will contain the numbers X Y Z (0 ≤ X, Y, Z ≤ 100). After that there will be X x Y lines each containing Z numbers of B. The first line contai