import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UncheckedIOException;
import java.util.stream.Stream;

class Main {
    public static void main(String[] args) {
        no26();
    }
    
    // No.26 シャッフルゲーム
    private static void no26() {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        // カップの位置
        int correct;
        // 回数
        int turn;
        // 入れ替え位置
        int[][] replacement;

        try {
            String co = reader.readLine();
            correct = Integer.parseInt(co);

            String tn = reader.readLine();
            turn = Integer.parseInt(tn);

            replacement = new int[turn][];

            for (int i = 0; i < turn; i++) {
                String line = reader.readLine();
                replacement[i] = Stream.of(line.split(" ")).mapToInt(Integer::parseInt).toArray();
            }
            reader.close();
        } catch (IOException e) {
            throw new UncheckedIOException(e);
        }

        String[] cups = new String[3];

        cups[correct - 1] = String.valueOf(correct);

        for (int i = 0; i < replacement.length; i++) {
            String cup = cups[replacement[i][0] - 1];
            cups[replacement[i][0] - 1] = cups[replacement[i][1] - 1];
            cups[replacement[i][1] - 1] = cup;
        }

        for (int i = 0; i < cups.length; i++) {
            if (cups[i] != null) {
                System.out.println(i + 1);
            }
        }
    }
}