#line 1 "playspace/main.cpp"
#include <bits/stdc++.h>
#line 3 "library/gandalfr/data_structure/union_find.hpp"

#line 6 "library/gandalfr/data_structure/union_find.hpp"

class union_find {
  private:
    int N;
    mutable std::vector<int> par;
    std::vector<int> nxt;
    int group_num; // 集合の数

  public:
    union_find() : N(0), group_num(0) {}
    union_find(int n) : N(n), par(n, -1), nxt(n), group_num(n) {
        std::iota(nxt.begin(), nxt.end(), 0);
    }

    /**
     * @brief 頂点を n 個に増やす
     * @attention 小さくはできない
     */
    void expand(int n) {
        if (n <= N)
            return;
        par.resize(n, -1);
        nxt.resize(n);
        for (int i = N; i < n; ++i)
            nxt[i] = i;
        group_num += n - N;
        N = n;
    }

    int leader(int x) const {
        return (par[x] < 0 ? x : par[x] = leader(par[x]));
    }

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

    bool merge(int x, int y) {
        if ((x = leader(x)) == (y = leader(y)))
            return false;
        if (-par[x] > -par[y])
            std::swap(x, y);

        par[x] += par[y];
        par[y] = x;
        std::swap(nxt[x], nxt[y]);
        group_num--;
        return true;
    }

    /**
     * @brief x の属するグループのサイズを返す
     */
    int size(int x) const { return -par[leader(x)]; }

    /**
     * @brief すべてのノードの数
     */
    int size() const { return N; }

    std::vector<int> group_containing_node(int x) const {
        std::vector<int> ret{x};
        for (int cu = nxt[x]; cu != ret[0]; cu = nxt[cu])
            ret.push_back(cu);
        return ret;
    }

    int count_groups() const { return group_num; }

    std::vector<std::vector<int>> all_groups() const {
        std::vector<std::vector<int>> result;
        result.reserve(group_num);
        std::vector<bool> used(N, false);
        for (int i = 0; i < N; ++i) {
            if (!used[i]) {
                result.emplace_back(group_containing_node(i));
                for (int x : result.back()) {
                    used[x] = true;
                }
            }
        }
        return result;
    }
};
#line 3 "playspace/main.cpp"
using namespace std;
using ll = long long;
const int INF = 1001001001;
const ll INFLL = 1001001001001001001;
const ll MOD  = 1000000007;
const ll _MOD = 998244353;
#define rep(i, j, n) for(ll i = (ll)(j); i < (ll)(n); i++)
#define rrep(i, j, n) for(ll i = (ll)(n-1); i >= (ll)(j); i--)
#define all(a) (a).begin(),(a).end()
#define debug(a) std::cerr << #a << ": " << a << std::endl
#define LF cout << endl
#ifdef ENABLE_MULTI_FOR
#define mrep(it, mr) for(multi_iter it(mr); !it.fin(); ++it)
#endif
template<typename T1, typename T2> inline bool chmax(T1 &a, T2 b) { return a < b && (a = b, true); }
template<typename T1, typename T2> inline bool chmin(T1 &a, T2 b) { return a > b && (a = b, true); }
void Yes(bool ok){ std::cout << (ok ? "Yes" : "No") << std::endl; }

int main(void){

    int N, Q;
    cin >> N >> Q;
    union_find G(N);
    set<int> st;
    rep(i,0,N) {st.insert(i);}
    rep(i,0,Q) {
        int q;
        cin >> q;
        if (q == 1) {
            int u, v;
            cin >> u >> v;
            u--, v--;
            if (G.same(u, v)) {
                continue;
            }

            u = G.leader(u);
            v = G.leader(v);
            if (G.size(u) > G.size(v)) {
                swap(u, v);
                
            }
            G.merge(u, v);
            st.erase(v);
        } else {
            int x;
            cin >> x;
            x--;
            x = G.leader(x);

            if (st.size() == 1) {
                cout << -1 << endl;
            } else {
                auto it = st.begin();
                if (*it != x) {
                    cout << *it + 1 << endl;
                } else {
                    cout << *++it + 1 << endl;
                }
            }
        }
    }



}