#include <iostream>
#include <queue>
#include<vector>
#include<set>
#include<stack>
#include<array>
#include<string>
#include <cassert>
#include <algorithm>
using namespace std;
#define ll long long 
#define endl "\n"
const int N=2e5+10;
int fa[N];
int find(int x){
    if(fa[x]!=x) return find(fa[x]);
    return x;
}
void solved(){
    int n,q;
    cin>>n>>q;
    set<int> s;
    for(int i=1;i<=n;i++){
        fa[i]=i;
        s.insert(i);
    }

    while(q--){
        int op;
        cin>>op;
        if(op==1){
            int u,v;
            cin>>u>>v;
            if(find(u)==find(v)) continue;
            int fu=find(u),fv=find(v);
            s.erase(fv);
            fa[fv]=fu;
        }
        else{   
            int v;
            cin>>v;
            int fv=find(v);
            if(s.size()==1){
                cout<<-1<<endl;
            }
            else{
                int d1=*s.begin(),d2=*s.rbegin();
                if(d1==fv){
                    cout<<d2<<endl;
                }
                else cout<<d1<<endl;
            }
        }
    }
}
signed main(){
   
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    solved();
}