import java.io.*;
import java.util.*;
import java.util.function.*;
import java.util.stream.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        UnionFindTree uft = new UnionFindTree(n);
        int q = sc.nextInt();
        StringBuilder sb = new StringBuilder();
        while (q-- > 0) {
            if (sc.nextInt() == 1) {
                uft.unite(sc.nextInt() - 1, sc.nextInt() - 1);
            } else {
                sb.append(uft.getAnother(sc.nextInt() - 1) + 1).append("\n");
            }
        }
        System.out.print(sb);
    }
    
    static class UnionFindTree {
        int[] parents;
        TreeSet<Integer> exist = new TreeSet<>();
        
        public UnionFindTree(int size) {
            parents = new int[size];
            for (int i = 0; i < size; i++) {
                parents[i] = i;
                exist.add(i);
            }
        }
        
        public int find(int x) {
            if (x == parents[x]) {
                return x;
            } else {
                return parents[x] = find(parents[x]);
            }
        }
        
        public boolean same(int x, int y) {
            return find(x) == find(y);
        }
        
        public void unite(int x, int y) {
            int xx = find(x);
            int yy = find(y);
            if (xx != yy) {
                parents[xx] = yy;
                exist.remove(xx);
            }
        }
        
        public int getAnother(int x) {
            if (exist.size() == 1) {
                return -2;
            } else if (same(x, exist.last())) {
                return exist.first();
            } else {
                return exist.last();
            }
        }
    }
}
class Scanner {
    BufferedReader br;
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() {
        try {
            br = new BufferedReader(new InputStreamReader(System.in));
        } catch (Exception e) {
            
        }
    }
    
    public int nextInt() {
        return Integer.parseInt(next());
    }
    
    public long nextLong() {
        return Long.parseLong(next());
    }
    
    public double nextDouble() {
        return Double.parseDouble(next());
    }
    
    public String next() {
        try {
            while (!st.hasMoreTokens()) {
                st = new StringTokenizer(br.readLine());
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            return st.nextToken();
        }
    }
    
}