#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1000000;
int a[300005], b[300005];
class SegmentTree {
 public:
  SegmentTree* left = nullptr;
  SegmentTree* right = nullptr;
  int start, end, val = 0, lazyadd = 0;
  SegmentTree(int s, int e) {
    start = s;
    end = e;
    if (start != end) {
      left = new SegmentTree(start, (start + end) / 2);
      right = new SegmentTree((start + end) / 2 + 1, end);
    }
  }
  void propogate() {
    if (lazyadd) {
      left->val += lazyadd;
      right->val += lazyadd;
      left->lazyadd += lazyadd;
      right->lazyadd += lazyadd;
      lazyadd = 0;
    }
  }
  void update(int l, int r, int v) {
    if (l > end || r < start) {
      return;
    }
    if (l <= start && end <= r) {
      val += v;
      lazyadd += v;
      return;
    }
    propogate();
    left->update(l, r, v);
    right->update(l, r, v);
    val = min(left->val, right->val);
  }
  int traverse() {
    if (val >= 0) {
      return -1;
    }
    if (start == end) {
      return start;
    }
    propogate();
    if (right->val < 0) {
      return right->traverse();
    }
    return left->traverse();
  }
};
int main() {
  ios::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(0);
  int n, m, q, input;
  int index, x;
  cin >> n >> m;
  SegmentTree myTree(1, 1000000);
  for (int i = 1; i <= n; i++) {
    cin >> a[i];
    myTree.update(1, a[i], -1);
  }
  for (int j = 1; j <= m; j++) {
    cin >> b[j];
    myTree.update(1, b[j], 1);
  }
  cin >> q;
  for (int w = 0; w < q; w++) {
    cin >> input >> index >> x;
    if (input == 1) {
      myTree.update(1, a[index], 1);
      a[index] = x;
      myTree.update(1, a[index], -1);
    } else {
      myTree.update(1, b[index], -1);
      b[index] = x;
      myTree.update(1, b[index], 1);
    }
    cout << myTree.traverse() << endl;
  }
  return 0;
}
