#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;

int main() {
	int n, q;
	cin >> n >> q;
	atcoder::dsu uf(n);
	multiset<int> s;
	for (int i = 0; i < n; i++){
		s.insert(i);
	}
	while (q--){
		int t;
		cin >> t;
		if (t == 1){
			int u, v;
			cin >> u >> v;
			u--;
			v--;
			s.erase(s.find(uf.leader(u)));
			s.erase(s.find(uf.leader(v)));
			uf.merge(u, v);
			s.insert(uf.leader(u));
			s.insert(uf.leader(v));
		} else {
			int u;
			cin >> u;
			u--;
			if (uf.size(u) == n){
				cout << -1 << endl;
			} else {
				if (*s.begin() != uf.leader(u)){
					cout << (*s.begin()) + 1 << endl;
				} else {
					cout << (*prev(s.end())) + 1 << endl;
				}
			}
		}
	}
}