#include <iostream>
#include <algorithm>
#include <iomanip>
#include <vector>
#include <queue>
#include <set>
#include <map>

using namespace std;
typedef long long ll;
int N, Q;
int par[500000], root[500000], leaf[500000], sz[500000], ch[500000];
int T[500000], A[500000], B[500000];
int idx[500000];


template <typename T>
struct LazySegmentTree {
    int n;
    T unit;
    vector<T> node, lazy;
    vector<bool> lazyFlag;

    T calc(T a, T b){
        T ans;
        ans = max(a, b); //適宜変える
        return ans;
    }

    T lazyEvaluateNode(T node, T lazy){
        return node+lazy; //適宜変える
    }

    T clearLazy(){
        return 0; //適宜変える
    }

    LazySegmentTree(vector<T> v, T UNIT) {
        int sz = (int)v.size();
        unit = UNIT;
        n = 1; while(n < sz) n *= 2;
        node.resize(2*n-1, 0);
        lazy.resize(2*n-1, 0);
        lazyFlag.resize(2*n-1, false);

        for(int i=0; i<sz; i++) node[i+n-1] = v[i];
        for(int i=n-2; i>=0; i--) node[i] = calc(node[i*2+1], node[i*2+2]);
    }

    void lazyEvaluate(int k, int l, int r) {
        if(lazyFlag[k]) {
            node[k] = lazyEvaluateNode(node[k], lazy[k]);
            if(r - l > 1) {
                lazy[k*2+1] = lazyEvaluateNode(lazy[k*2+1], lazy[k]);
                lazy[k*2+2] = lazyEvaluateNode(lazy[k*2+2], lazy[k]);
                lazyFlag[k*2+1] = lazyFlag[k*2+2] = true;
            }
            lazyFlag[k] = false;
            lazy[k] = clearLazy();
        }
    }

    //[a, b)
    //区間[a, b]への更新に対してはupdate(a, b+1, x)と呼ぶ
    void update(int a, int b, T x, int k=0, int l=0, int r=-1) {
        if(r < 0) r = n;
        lazyEvaluate(k, l, r);
        if(b <= l || r <= a) return;
        if(a <= l && r <= b) {
            lazy[k] += x;
            lazyFlag[k] = true;
            lazyEvaluate(k, l, r);
        }
        else {
            update(a, b, x, 2*k+1, l, (l+r)/2);
            update(a, b, x, 2*k+2, (l+r)/2, r);
            node[k] = calc(node[2*k+1], node[2*k+2]);
        }
    }

    //[a, b)
    //区間[a, b]へのクエリに対してはquery(a, b+1)と呼ぶ
    T query(int a, int b, int k=0, int l=0, int r=-1) {
        if(r < 0) r = n;
        lazyEvaluate(k, l, r);
        if(b <= l || r <= a) return unit;
        if(a <= l && r <= b) return node[k];
        T vl = query(a, b, 2*k+1, l, (l+r)/2);
        T vr = query(a, b, 2*k+2, (l+r)/2, r);
        return calc(vl, vr);
    }
};

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout << setprecision(10) << fixed;
    cin >> N >> Q;
    for(int i = 0; i < Q; i++){
        // scanf("%d %d %d", &T[i], &A[i], &B[i]);
        cin >> T[i] >> A[i] >> B[i];
        A[i]--;
        if(T[i] == 1) B[i]--;
    }
    for(int i = 0; i < N; i++){
        root[i] = i; par[i] = i; leaf[i] = i; sz[i] = 1; ch[i] = -1;
    }
    for(int i = 0; i < Q; i++){
        if(T[i] == 1){
            if(root[A[i]] == root[B[i]]) continue;
            if(sz[root[A[i]]] > sz[root[B[i]]]){
                int tmp = leaf[B[i]];
                int sum = sz[root[A[i]]]+sz[root[B[i]]];
                par[root[B[i]]] = leaf[root[A[i]]];
                leaf[root[A[i]]] = leaf[root[B[i]]];
                while(root[tmp] != root[A[i]]){
                    root[tmp] = root[A[i]];
                    tmp = par[tmp];
                }
                // cout << A[i] << ' ' << B[i] << ' ' << root[B[i]] << ' ' << leaf[root[B[i]]] << endl;
            }else{
                int tmp = leaf[A[i]];
                int sum = sz[root[A[i]]]+sz[root[B[i]]];
                par[root[A[i]]] = leaf[root[B[i]]];
                leaf[root[B[i]]] = leaf[root[A[i]]];
                while(root[tmp] != root[B[i]]){
                    root[tmp] = root[B[i]];
                    tmp = par[tmp];
                }
                // cout << A[i] << ' ' << B[i] << ' ' << root[A[i]] << ' ' << leaf[root[A[i]]] << endl;
            }
        }
    }
    for(int i = 0; i < N; i++){
        if(par[i] != i) ch[par[i]] = i;
    }
    int cur = 0;
    for(int i = 0; i < N; i++){
        if(par[i] == i){
            int tmp = i;
            idx[tmp] = cur;
            cur++;
            while(ch[tmp] != -1){
                tmp = ch[tmp];
                idx[tmp] = cur;
                cur++;
            }
        }
    }
    // cout << "-----" << endl;
    // for(int i = 0; i < N; i++) cout << par[i] << ' ';
    // cout << endl;
    // for(int i = 0; i < N; i++) cout << ch[i] << ' ';
    // cout << endl;
    // for(int i = 0; i < N; i++) cout << idx[i] << ' ';
    // cout << endl;
    vector<int> v(N, 0);
    LazySegmentTree<int> sgt(v, -1e9);
    for(int i = 0; i < N; i++){
        root[i] = i; par[i] = i; leaf[i] = i; sz[i] = 1; ch[i] = -1;
    }
    for(int i = 0; i < Q; i++){
        if(T[i] == 1){
            if(root[A[i]] == root[B[i]]) continue;
            if(sz[root[A[i]]] > sz[root[B[i]]]){
                int tmp = leaf[B[i]];
                int sum = sz[root[A[i]]]+sz[root[B[i]]];
                par[root[B[i]]] = leaf[root[A[i]]];
                leaf[root[A[i]]] = leaf[root[B[i]]];
                while(root[tmp] != root[A[i]]){
                    root[tmp] = root[A[i]];
                    tmp = par[tmp];
                }
                // cout << A[i] << ' ' << B[i] << ' ' << root[B[i]] << ' ' << leaf[root[B[i]]] << endl;
            }else{
                int tmp = leaf[A[i]];
                int sum = sz[root[A[i]]]+sz[root[B[i]]];
                par[root[A[i]]] = leaf[root[B[i]]];
                leaf[root[B[i]]] = leaf[root[A[i]]];
                while(root[tmp] != root[B[i]]){
                    root[tmp] = root[B[i]];
                    tmp = par[tmp];
                }
                // cout << A[i] << ' ' << B[i] << ' ' << root[A[i]] << ' ' << leaf[root[A[i]]] << endl;
            }
        }
        if(T[i] == 2){
            int l = idx[root[A[i]]];
            int r = idx[leaf[root[A[i]]]];
            // cout << B[i] << ' ' << l << '-' << r << endl;
            sgt.update(l, r+1, B[i]);
        }
        if(T[i] == 3){
            int l = idx[A[i]];
            cout << sgt.query(l, l+1) << endl;
        }
    }
}