#include <cstdio>

const int R = 300;
const int C = 300;

int grid[R][C];

int main() {
  int T = 0, r, c, k;
  scanf("%d", &T);
  for (int t = 1; t <= T; t++) {
    scanf("%d %d %d", &r, &c, &k);
    for (int i = 0; i < r; i++)
      for (int j = 0; j < c; j++)
        scanf("%d", &grid[i][j]);
    
    printf("Case #%d: %d\n", t, r * c);
  }
  return 0;
}