3 3 20
4 4
2 4
2 2
2 2
2 2
5 5
2 2
2 2
2 2
5 5
5 5
3 5
4 2
2 2
5 5
5 5
3 5
5 5
2 2
3 3
 1 10 10
1 19
2 12
2 8
2 16
2 2
2 4
1 9
2 18
2 14
2 10
 10 10 10
2 6
17 7
5 19
14 14
10 10
16 2
6 10
7 17
18 2
17 1
 10 10 10
12 10
8 4
10 8
15 13
11 11
8 6
9 19
13 19
6 4
19 19
 3 3 20
5 5
6 6
6 6
6 2
6 4
6 6
6 6
5 3
5 5
6 4
6 2
5 1
5 1
6 6
6 6
6 2
5 5
6 4
5 3
6 4
 3 3 20
1 1
4 4
1 1
4 4
3 3
1 1
3 1
6 6
1 1
4 6
3 1
3 3
6 4
3 1
6 6
4 6
3 1
4 6
4 6
5 1
 1 10 10
2 10
1 9
2 12
2 18
2 4
2 8
2 20
2 2
2 6
2 14
 10 10 10
2 10
4 6
1 19
7 15
20 18
3 19
11 17
9 17
16 2
19 15
 3 1 20
3 1
1 1
3 1
4 2
4 2
6 2
1 1
5 1
5 1
2 2
4 2
2 2
6 2
4 2
4 2
2 2
1 1
6 2
2 2
6 2
 10 10 10
10 12
19 7
14 12
10 10
8 6
19 19
18 2
12 2
16 4
16 2
 1 1 100
2 2
2 2
1 1
2 2
2 2
1 1
1 1
1 1
2 2
2 2
2 2
1 1
1 1
1 1
1 1
1 1
2 2
1 1
2 2
1 1
2 2
1 1
2 2
2 2
1 1
2 2
1 1
2 2
2 2
2 2
1 1
1 1
2 2
1 1
2 2
2 2
1 1
2 2
1 1
1 1
2 2
2 2
2 2
2 2
2 2
2 2
2 2
2 2
1 1
2 2
2 2
1 1
1 1
1 1
2 2
1 1
2 2
1 1
2 2
1 1
1 1
1 1
2 2
1 1
1 1
2 2
1 1
1 1
2 2
1 1
2 2
1 1
1 1
1 1
2 2
2 2
1 1
1 1
2 2
1 1
2 2
2 2
2 2
1 1
2 2
2 2
2 2
2 2
2 2
1 1
1 1
1 1
2 2
2 2
1 1
1 1
2 2
1 1
1 1
2 2
 1 10 10
1 15
1 19
2 16
1 17
2 4
2 2
2 8
1 11
2 10
2 6
 10 10 10
10 2
19 9
19 17
8 8
5 3
20 4
12 12
2 16
5 19
2 4
 2 2 20
2 4
2 4
1 3
4 2
3 3
2 4
3 3
1 3
1 3
3 3
4 4
3 1
1 3
3 3
2 2
2 4
4 2
4 2
1 1
3 1
 1 10 10
1 19
1 17
2 2
2 10
1 15
2 8
2 6
2 16
2 14
2 4
 10 10 10
8 4
2 4
9 19
16 2
13 7
11 7
7 17
6 6
1 1
15 15
 2 1 2
2 2
1 1
 1 3 100
2 2
1 1
1 5
1 1
2 4
1 1
1 1
2 2
1 1
2 2
2 2
1 1
1 5
2 6
1 1
1 1
2 4
1 3
2 6
1 5
2 6
2 2
2 6
1 1
2 4
1 5
1 1
2 6
1 5
2 4
1 3
2 6
1 5
2 6
2 4
2 2
1 3
2 6
2 4
1 3
1 1
2 2
1 3
1 1
2 6
1 5
1 5
2 4
2 4
1 3
1 5
2 4
2 6
1 3
1 1
1 3
2 6
2 2
2 2
1 1
2 2
2 6
1 5
1 3
2 6
2 4
2 2
2 2
2 6
1 3
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2 2
2 4
2 2
1 3
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2 4
2 6
2 2
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2 6
2 6
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1 3
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1 3
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1 3
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 10 10 10
17 11
11 15
8 8
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7 7
9 13
12 8
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15 13
13 17
 1 10 10
2 16
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2 10
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2 18
2 12
2 6
2 14
2 2
 1 2 100
1 3
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1 3
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1 1
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1 3
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2 2
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1 1
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1 1
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1 1
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1 3
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2 2
1 1
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1 1
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2 4
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1 1
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1 1
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2 4
2 4
2 2
2 2
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2 2
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1 1
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1 1
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1 1
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1 3
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1 1
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1 3
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1 1
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1 3
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2 2
 3 3 20
1 1
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5 1
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1 3
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1 1
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4 6
1 3
3 5
6 6
1 1
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4 6
 10 10 10
7 19
14 8
15 13
6 6
10 8
18 6
3 1
16 4
8 10
12 12
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4 4
18 20
11 9
1 15
2 2
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2 12
17 9
11 13
8 2
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4 2
6 4
1 3
4 2
6 4
2 2
2 4
1 3
4 4
3 1
 1 10 10
1 11
2 8
1 13
2 2
1 5
1 9
1 3
1 7
1 15
1 17
 10 10 10
15 19
12 8
7 13
12 2
8 10
3 5
13 13
9 9
18 2
5 13
 2 3 20
1 3
1 1
1 1
1 3
2 4
2 4
1 1
2 6
1 1
1 3
3 1
2 6
1 1
2 4
1 1
4 6
1 3
1 3
1 1
3 1
 3 3 20
2 6
1 5
2 6
1 1
1 1
4 6
1 5
1 1
1 1
5 1
1 3
1 3
6 2
6 2
4 6
4 4
3 1
4 4
1 1
1 3
 10 10 10
10 6
7 5
9 13
13 15
19 7
11 13
5 17
16 6
2 14
7 15
 1 1 20
1 1
2 2
2 2
2 2
1 1
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1 1
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1 1
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1 1
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1 1
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1 1
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1 1
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2 2
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2 4
2 8
1 19
2 2
2 10
1 5
2 6
1 17
2 14
1 15
 3 3 20
4 2
3 5
3 1
2 2
3 1
5 5
6 2
6 4
1 5
2 6
5 5
3 1
5 3
3 3
2 6
3 3
2 6
3 3
4 2
1 5
 10 10 10
1 19
3 17
12 4
16 20
5 19
5 17
20 2
15 9
16 4
4 16
 1 10 10
2 4
2 8
2 6
1 17
1 9
1 15
2 10
1 11
2 2
1 13
 10 10 10
9 17
9 13
8 10
12 2
18 14
18 6
10 6
13 19
2 12
10 8
 10 10 10
2 6
5 9
5 15
1 19
6 6
8 4
11 9
13 11
4 6
10 2
 10 10 10
16 2
12 6
8 2
12 2
3 15
6 6
7 17
4 16
11 9
2 6
 10 10 10
18 2
15 13
9 19
6 10
20 18
15 19
2 2
11 13
17 13
3 15
 1 2 1
2 2
 1 10 10
2 4
1 13
1 7
2 14
1 19
1 17
2 2
1 15
1 11
2 6
 1 10 10
1 13
2 4
1 5
2 2
1 19
1 11
1 15
1 17
1 7
2 14
 1 10 10
1 17
2 4
2 2
1 11
1 15
1 19
2 6
2 8
2 12
1 13

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#include <bits/stdc++.h>
using namespace std;
using ll = long long;
signed main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  int n, m, q;
  while (cin >> n >> m >> q) {
    vector<set<int>> lt(n), rb(n);
    queue<pair<int, int>> que;
    struct SegmentTree {
      int n;
      int init_val;
      vector<int> tree;
      function<int(int, int)> f;
      SegmentTree(int n, int init_val, function<int(int, int)> f)
          : n(n), init_val(init_val), tree(4 * n, init_val), f(f) {}
      int get(int l, int r) { return get(l, r, 1, 0, n - 1); }
      int get(int l, int r, int tv, int tl, int tr) {
        if (l <= tl && tr <= r) return tree[tv];
        if (tr < l || r < tl) return init_val;
        int tm = (tl + tr) / 2;
        return f(get(l, r, 2 * tv, tl, tm), get(l, r, 2 * tv + 1, tm + 1, tr));
      }
      void set(int idx, int val) { set(idx, val, 1, 0, n - 1); }
      void set(int idx, int val, int tv, int tl, int tr) {
        if (tl == tr) {
          tree[tv] = val;
        } else {
          int tm = (tl + tr) / 2;
          if (idx <= tm)
            set(idx, val, 2 * tv, tl, tm);
          else
            set(idx, val, 2 * tv + 1, tm + 1, tr);
          tree[tv] = f(tree[2 * tv], tree[2 * tv + 1]);
        }
      }
    };
    SegmentTree min_tree(n, m + 1, [](int a, int b) { return min(a, b); });
    SegmentTree max_tree(n, -1, [](int a, int b) { return max(a, b); });
    auto check = [&](int ii, int jj) {
      int i = ii / 2;
      int j = jj / 2;
      if (ii % 2) {
        if (!lt[i].count(j)) return true;
        auto mi = min_tree.get(0, i);
        return mi > j;
      } else {
        if (!rb[i].count(j)) return true;
        auto ma = max_tree.get(i, n - 1);
        return j > ma;
      }
    };
    while (q--) {
      int ii, jj;
      cin >> ii >> jj;
      --ii, --jj;
      int i = ii / 2;
      int j = jj / 2;
      if (ii % 2) {
        if (lt[i].count(j)) {
          lt[i].erase(j);
          int val = lt[i].empty() ? -1 : *lt[i].rbegin();
          max_tree.set(i, val);
        } else {
          lt[i].insert(j);
          max_tree.set(i, *lt[i].rbegin());
        }
      } else {
        if (rb[i].count(j)) {
          rb[i].erase(j);
          int val = rb[i].empty() ? m + 1 : *rb[i].begin();
          min_tree.set(i, val);
        } else {
          rb[i].insert(j);
          min_tree.set(i, *rb[i].begin());
        }
      }
      que.emplace(ii, jj);
      while (!que.empty()) {
        auto [ii, jj] = que.front();
        if (!check(ii, jj)) {
          break;
        }
        que.pop();
      }
      cout << (que.empty() ? "YES" : "NO") << "\n";
    }
  }
}
