C. 为什么会超内存啊！！！

}

import java.io.*;
import java.nio.channels.NonWritableChannelException;
import java.text.DateFormatSymbols;
import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.PriorityQueue;
import java.util.Scanner;

import java.util.HashMap;
import java.util.HashSet;

public class Main {
    static BufferedReader cin=new BufferedReader(new InputStreamReader(System.in));
    static PrintWriter cout=new PrintWriter(new OutputStreamWriter(System.out));
    static StreamTokenizer st=new StreamTokenizer(cin);
    static Scanner sc=new Scanner(cin);
    static int MAXN=2001;
    static int base=2005;
    static int n,m;
    static char board[][]=new char[MAXN][MAXN];
    static int dir[][]= {{1,0},{0,1},{-1,0},{0,-1}};
    static HashSet<Integer> bset=new HashSet<Integer>();
    static boolean vist[][]=new boolean[MAXN][MAXN];
    public static void main(String[] args)throws IOException {
    	int t=nextInt();
    	while(t-->0) {
    		n=nextInt();
    		m=nextInt();
    		int blue=0;
    		boolean win=false;
    		//cin.readLine();
    		for(int i=0;i<n;i++) {
    			String in=cin.readLine();
    			for(int j=0;j<m;j++) {
    				board[i][j]=in.charAt(j);
    				if(board[i][j]=='.') blue++;
    				vist[i][j]=false;
    			}
    		}
    		if(blue==n*m) {
    			cout.println("Blue");
    			continue;
    		}
    		for(int i=0;i<n;i++)
    			for(int j=0;j<m;j++) {
    				if(board[i][j]=='.'||vist[i][j]) continue;
    				bset.clear();
    				vist[i][j]=true;
    				dfs(i,j);
    				if(bset.size()==blue) win=true;
    			}
    		cout.println(win?"Red":"Draw");
    	}
    	end();
    }
    public static void dfs(int x,int y) {
    	for(int i=0;i<4;i++) {
    		int xm=x+dir[i][0];
    		int ym=y+dir[i][1];
    		if(xm<0||xm>=n||ym<0||ym>=m||vist[xm][ym]) continue;
    		int v=xm*base+ym;
    		if(board[xm][ym]=='.') bset.add(v);
    		else {
    			vist[xm][ym]=true;
    			dfs(xm, ym);
    		}
    	}
    }
    public static void end() throws IOException {
        cout.flush();
        cout.close();
        cin.close();
    }
    public static double nextDouble()throws IOException{
        st.nextToken();
        return st.nval;
    }
    public static int nextInt() throws IOException {
        st.nextToken();
        return (int)st.nval;
    }
    public static long nextLong()throws IOException{
        st.nextToken();
        return (long) st.nval;
    }
    public static String next()throws IOException{
        st.nextToken();
        return st.sval;
    }
}