The following code:

cin>>n;
for(i=1;i<=n;i++) {
  cin>>x[i]>>y[i];
  assert(x[i]>=1 && x[i]<=10 && y[i]>=1 && y[i]<=10);
  here[x[i]][y[i]]=true;
}

gives RTE, so test 2 is wrong. After, removing the assert, it gives WA :)

Input
One representation of the image will be given to your program in the input.
Output
Your program has to write other representation of the image to the output.

TEST 2 like this :
Input:
2 3
RT,
RT,
,
B,
,
.
Output:
6
2 3
2 4
3 3
3 4
4 2
4 3