#include <bits/stdc++.h>

using namespace std;

ifstream in("cautbin.in");
ofstream out("cautbin.out");

int main()
{
    int n,m,ok,w;
    in>>n;
    int v[n+1];
    for(int i=1; i<=n; i++)
    {
        in>>v[i];
    }

    in>>m;

       for(int i=1; i<=m; i++)
    {
        in>>ok>>w;
        if(ok==0)
        {
            int st=1,dr=n;
            while(st<=dr)
            {
                int mid = (st+dr)/2;
                if(v[mid]>w)
                {
                    dr = mid-1;
                }
                else
                {
                    st = mid+1;

                }
            }
            if(v[dr]==w)
            {
                out<<dr<<"\n";
            }
            else
            {
                out<<"-1"<<"\n";
            }

        }
    }


    return 0;
}