#include <cstdio>
#include <vector>
using namespace std;
int main() {
int n, m, N,V, k;
vector<vector<int> > v;
while (scanf("%d %d", &n, &m) != EOF) {
v.assign(1000000, vector<int>());
for (int i = 1; i <= n; i++) {
scanf("%d", &N);
v[N].push_back(i);
}
for (int i = 0; i < m; i++) {
scanf("%d %d", &k, &V);
if ( v [V].size () < k ) printf ("0\n");
else printf ("%d\n", v [V] [k - 1]);
}
}
return 0;
}