content: package v117;
  import java.io.BufferedReader;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.InputStreamReader;
  import java.io.PrintWriter;
  import java.util.StringTokenizer;
  
  
  public class Cantor_UVa11701 {
  
  	static final int factor = (int)1e6;
  	static Boolean[] memo = new Boolean[factor * 10];
  	
  	static boolean hasOne(int x)
  	{
  		if(memo[x] != null)
  			return memo[x];
  		memo[x] = false;
  		int y = x * 3;
  		return memo[x] = (y / factor) == 1 || hasOne(y % factor);
  	}
  	
  	public static void main(String[] args) throws IOException 
  	{
  		Scanner sc = new Scanner(System.in);
  		PrintWriter out = new PrintWriter(System.out);
  
  		while(true)
  		{
  			String s = sc.next();
  			if(s.equals("END"))
  				break;
  			if(s.length() == 1)
  				out.println("MEMBER");
  			else
  			{
  				s = s.substring(2);
  				int x = 0, i;
  				for(i = 0; i < s.length(); ++i)
  					x = x * 10 + s.charAt(i) - '0';
  				for(; i < 6; ++i)
  					x *= 10;
  				out.println(hasOne(x) ? "NON-MEMBER":"MEMBER");
  			}
  		}
  		out.flush();
  		out.close();
  	}
  	
  	static class Scanner 
  	{
  		StringTokenizer st;
  		BufferedReader br;
  
  		public Scanner(InputStream s){	br = new BufferedReader(new InputStreamReader(s));}
  
  		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();}
  	}
  }