#include <iostream>
#include <iomanip>
#include <vector>
#include <algorithm>
#include <functional>
#include <cmath>
#include <string>
#include <queue>
#include <map>
#include <bitset>
#include <set>
#include <stack>
#include <numeric>
#include <unordered_map>
#include <random>

using namespace std;

using ll = long long;
using vi = vector<int>;
using vvi = vector<vi>;
using vl = vector<ll>;
using vvl = vector<vl>;
using vb = vector<bool>;
using vvb = vector<vb>;
using vd = vector<double>;
using vs = vector<string>;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using pdd = pair<double, double>;
using vpii = vector<pii>;
using vpll = vector<pll>;
using vpdd = vector<pdd>;
const int inf = (1 << 30) - 1;
const ll INF = 1LL << 60;
const int MOD = 1000000007;
//const int MOD = 998244353;

struct UnionFind {
	vector<int> par;
	vector<int> sizes;

	UnionFind(int n) : par(n), sizes(n, 1) {
		for (int i = 0; i < n; i++) par[i] = i;
	}

	int root(int x) {
		if (x == par[x]) return x;
		return par[x] = root(par[x]);
	}

	void unite(int x, int y) {
		x = root(x);
		y = root(y);
		if (x == y) return;

		if (sizes[x] < sizes[y]) swap(x, y);
		par[y] = x;
		sizes[x] += sizes[y];
	}

	bool same(int x, int y) { return root(x) == root(y); }

	int size(int x) { return sizes[root(x)]; }
};

int main() {
	int n, q;
	cin >> n >> q;
	UnionFind uf(n);
	set<int> node;
	for (int i = 0; i < n; i++) node.insert(i);

	for (int i = 0; i < q; i++) {
		int t, u, v;
		cin >> t;
		if (t == 1) {
			cin >> u >> v;
			u--; v--;
			if (!uf.same(u, v)) {
				uf.unite(u, v);
				int x = u;
				if (uf.root(v) == u) x = v;
				node.erase(v);
			}

		}
		else {
			cin >> v;
			v--;
			int r = uf.root(v);
			if (*node.begin() == r) {
				if (node.size() == 1) {
					cout << -1 << endl;
				}
				else {
					cout << *(next(node.begin())) + 1 << endl;
				}
			}
			else {
				cout << *node.begin() + 1 << endl;
			}
		}
	}

	return 0;
}