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

int main() {
	int n, q;
	cin >> n >> q;
	atcoder::dsu uf(n);
	while (q--){
		int t;
		cin >> t;
		if (t == 1){
			int u, v;
			cin >> u >> v;
			u--;
			v--;
			uf.merge(u, v);
		} else {
			int u;
			cin >> u;
			u--;
			if (uf.size(u) == n){
				cout << -1 << endl;
			} else {
				int l = 0, r = n - 1;
				while (r - l > 1){
					int mid = (l + r) / 2;
					if (uf.leader(mid) == uf.leader(u)){
						l = mid;
					} else {
						r = mid;
					}
				}
				cout << r + 1 << endl;
			}
		}
	}
}