package chelper;

import io.InputReader;
import io.OutputWriter;
import solutions.ChelperSolution;


public class TaskA extends ChelperSolution {

  @Override
  public void solve(int testNumber, InputReader in, OutputWriter out) {
    super.solve(testNumber, in, out);
  }

  @Override
  public void solve(int testNumber) {
    String hand = in.nextString();

    boolean ok = false;
    for (int i = 0; i < 5; i++) {
      String s = in.nextString();

      ok |= s.charAt(0) == hand.charAt(0);
      ok |= s.charAt(1) == hand.charAt(1);
    }

    out.println(ok ? "YES" : "NO");
  }
}