#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
#define ll long long
#define rep(i,n) for (int i = 0; i < (n); i++)
#define coutf(f) cout << fixed << setprecision(f)
#define all(v) (v).begin(), (v).end()
#define rall(v) (v).rbegin(), (v).rend()

int main() {
	int n, q;
	cin >> n >> q;
	dsu uf(n);
	int l = 0, r = n - 1;
	while (q--) {
		int type;
		cin >> type;
		if (type == 1) {
			int u, v;
			cin >> u >> v;
			u--; v--;
			uf.merge(u, v);
			while (r != uf.leader(r)) r--;
			while (l != uf.leader(l)) l++;
		}
		else {
			int v;
			cin >> v;
			v--;
			cout << (l == r ? -1 : uf.same(l, v) ? r + 1 : l + 1) << endl;
		}
	}
	return 0;
}