#include <bits/stdc++.h>
#define ll long long
 
using namespace std;
 
const int MOD = 1e9 + 7;
 
void solve(){
	int n, m;
	cin >> n >> m;
	string s;
	cin >> s;
 
	int a[n][m];
 
	ll s1[n], s2[m];
	memset(s1, 0, sizeof s1);
	memset(s2, 0, sizeof s2);
	for(int i = 0; i < n; i++){
		for(int j = 0; j < m; j++){
			cin >> a[i][j];
			s1[i] += a[i][j];
			s2[j] += a[i][j];
		}
	}
	int x = 0, y = 0;
	for(int i = 0; i < s.size(); i++){
		if(s[i] == 'R'){
			a[x][y] = -s2[y];
			s1[x] += (-s2[y]);
			s2[y] = 0;
			y++;
		}else{
			a[x][y] = -s1[x];
			s2[y] += (-s1[x]);
			s1[x] = 0;
			x++;
		}
	}
	a[n - 1][m - 1] = -s1[n - 1];
 
	for(int i = 0; i < n; i++){
		for(int j = 0; j < m; j++)cout << a[i][j] <<" ";
		cout << "\n";
	}
 
}
 
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
 
	int t = 1;
	cin >> t;
 
	for(int i = 1; i <= t; i++){
		solve();
	}
	return 0;
}

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NAozIDMKRFJSRAowIDIgMwowIDAgMAozIDEgMAo0IDUKRFJSUlJERAowIDEgMCAyIDMKMCAwIDAgMCAwCi0xIDAgLTMgLTMgMAowIDAgMCAtMSAwCjIgMwpSUkQKMCAwIDAKMCAxIDAKNSA1CkRERERSUlJSCjAgMjUgMiA5IDExCjAgNiAxMyAyMCAyMgowIDE3IDI0IDEgOAowIDMgMTAgMTIgMTkKMCAwIDAgMCAwCg==

4
3 3
DRRD
0 2 3
0 0 0
3 1 0
4 5
DRRRRDD
0 1 0 2 3
0 0 0 0 0
-1 0 -3 -3 0
0 0 0 -1 0
2 3
RRD
0 0 0
0 1 0
5 5
DDDDRRRR
0 25 2 9 11
0 6 13 20 22
0 17 24 1 8
0 3 10 12 19
0 0 0 0 0