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

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int N, Q;
    cin >> N >> Q;
    assert(1 <= N && N <= 200000);
    assert(1 <= Q && Q <= 200000);
    atcoder::dsu uf(N);
    int l = 0, r = N - 1;
    while(Q--){
        int type, u, v;
        cin >> type;
        if(type == 1){
            cin >> u >> v;
            assert(1 <= u && u <= N);
            assert(1 <= v && v <= N);
            uf.merge(--u, --v);
            while(l != uf.leader(l)) l++;
            while(r != uf.leader(r)) r--;
        }else{
            cin >> v;
            assert(1 <= v && v <= N);
            cout << (l == r ? -1 : (uf.same(--v, r) ? l + 1 : r + 1)) << '\n';
        }
    }
}