<image>

You have one chip and one chance to play roulette. Are you feeling lucky?

Output

Print your bet. Your chip must be placed entirely within some square (not on an edge or a corner shared by adjacent squares).
import java.io.*;
import java.util.*;


public class Alpha {
    String filename = "subseq";//filename here, System.in/out if no file

    FastScanner in;
    PrintWriter out;

    void pass() {
    }

    int[] rem(int[] a, int x) {
        int[] ans = new int[a.length - 1];
        for (int i = 0; i < x; i++) ans[i] = a[i];
        for (int i = x; i < a.length - 1; i++) ans[i] = a[i + 1];
        return ans;
    }

    void solve() {
        if (Math.random()>0.5)
        System.out.println("black");
        else System.out.println("red");
    }

    void run() throws IOException {
        InputStream input = System.in;
        OutputStream output = System.out;
        try {
            File f = new File(filename + ".in");
            if (f.exists() && f.canRead()) {
                input = new FileInputStream(f);
                output = new FileOutputStream(filename + ".out");
            }
        } catch (IOException e) {
        }
        in = new FastScanner(input);
        out = new PrintWriter(new BufferedOutputStream(output));
        solve();
        in.close();
        out.close();
    }

    public static void main(String[] args) throws IOException {
        Locale.setDefault(Locale.US);
        new Alpha().run();
    }

    class FastScanner implements Closeable {
        private BufferedReader br;
        private StringTokenizer tokenizer;

        public FastScanner(InputStream stream) throws FileNotFoundException {
            br = new BufferedReader(new InputStreamReader(stream));
        }

        public boolean hasNext() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    String s = br.readLine();
                    if (s == null) {
                        return false;
                    }
                    tokenizer = new StringTokenizer(s);
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.hasMoreTokens();
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public String nextLine() {
            if (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    return br.readLine();
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken("\n");
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

        public long nextLong() {
            return Long.parseLong(next());
        }

        public double nextDouble() {
            return Double.parseDouble(next());
        }

        @Override
        public void close() throws IOException {
            br.close();
        }

        public byte nextByte() {
            return Byte.parseByte(next());
        }
    }
}
  	     		
		   	 		 
   		 	 	 
 			 	 	  