#include <bits/stdc++.h>

#include <atcoder/dsu>
using namespace std;
using namespace atcoder;
void fast_io() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
}

int main() {
    fast_io();
    int n, q;
    cin >> n >> q;
    set<int> leaders;
    dsu uf(n);
    for (int i = 0; i < n; i++) {
        leaders.insert(i);
    }
    for (; q--;) {
        int type;
        cin >> type;
        if (type == 1) {
            int u, v;
            cin >> u >> v;
            u = uf.leader(u - 1);
            v = uf.leader(v - 1);
            if (u != v) {
                uf.merge(u, v);
                if (u != uf.leader(u)) {
                    leaders.erase(u);
                } else {
                    leaders.erase(v);
                }
            }
        }
        if (type == 2) {
            int v;
            cin >> v;
            v--;
            v = uf.leader(v);
            if (leaders.size() == 1) {
                cout << "-1\n";
            } else if (*leaders.begin() == v) {
                cout << *leaders.rbegin() + 1 << "\n";
            } else {
                cout << *leaders.begin() + 1 << "\n";
            }
        }
    }
}