content: package v110;
  import java.io.BufferedReader;
  import java.io.FileReader;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.InputStreamReader;
  import java.io.PrintWriter;
  import java.util.StringTokenizer;
  
  
  public class AGentlemensAgreement_UVa11065 {
  
  	static long[] adjMat;
  	static int N, ans, max;
  
  	static void dfs(int u, int cur, long msk)
  	{
  		if(u == N)
  		{
  			if(Long.bitCount(msk) == N)
  			{
  				++ans;
  				max = Math.max(max, cur);				
  			}
  			return;
  		}
  		
  		if((msk & 1l<<u) == 0)
  			dfs(u + 1, cur + 1, msk | adjMat[u]);
  		dfs(u + 1, cur, msk);
  		
  	}
  
  	public static void main(String[] args) throws IOException 
  	{
  		Scanner sc = new Scanner(System.in);
  		PrintWriter out = new PrintWriter(System.out);
  
  		int tc = sc.nextInt();
  		while(tc-->0)
  		{
  			N = sc.nextInt();
  			adjMat = new long[N];
  			for(int i = 0; i < N; ++i)
  				adjMat[i] = 1l<<i;
  			int E = sc.nextInt();
  			while(E-->0)
  			{
  				int u = sc.nextInt(), v = sc.nextInt();
  				adjMat[u] |= 1l<<v;
  				adjMat[v] |= 1l<<u;
  			}
  			ans = 0; max = 0;
  			dfs(0, 0, 0);
  			out.printf("%d\n%d\n", ans, max);
  		}
  		out.flush();
  		out.close();
  	}
  
  	static class Scanner 
  	{
  		StringTokenizer st;
  		BufferedReader br;
  
  		public Scanner(InputStream s){ br = new BufferedReader(new InputStreamReader(s));}
  
  		public Scanner(FileReader r){ br = new BufferedReader(r);}
  
  		public String next() throws IOException 
  		{
  			while (st == null || !st.hasMoreTokens()) 
  				st = new StringTokenizer(br.readLine());
  			return st.nextToken();
  		}
  
  		public int nextInt() throws IOException {return Integer.parseInt(next());}
  
  		public long nextLong() throws IOException {return Long.parseLong(next());}
  
  		public String nextLine() throws IOException {return br.readLine();}
  
  		public double nextDouble() throws IOException
  		{
  			String x = next();
  			StringBuilder sb = new StringBuilder("0");
  			double res = 0, f = 1;
  			boolean dec = false, neg = false;
  			int start = 0;
  			if(x.charAt(0) == '-')
  			{
  				neg = true;
  				start++;
  			}
  			for(int i = start; i < x.length(); i++)
  				if(x.charAt(i) == '.')
  				{
  					res = Long.parseLong(sb.toString());
  					sb = new StringBuilder("0");
  					dec = true;
  				}
  				else
  				{
  					sb.append(x.charAt(i));
  					if(dec)
  						f *= 10;
  				}
  			res += Long.parseLong(sb.toString()) / f;
  			return res * (neg?-1:1);
  		}
  
  		public boolean ready() throws IOException {return br.ready();}
  
  
  	}
  }