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
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1 1
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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
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2 6
1 5
1 3
2 6
2 4
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1 3
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2 2
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1 3
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 10 10 10
17 11
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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
2 4
2 18
2 12
2 6
2 14
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1 3
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1 3
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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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1 3
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1 1
2 2
1 1
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1 1
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2 4
2 2
1 3
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1 1
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1 1
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2 4
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2 2
2 2
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2 2
2 2
1 1
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1 1
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1 1
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1 3
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 1
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2 2
 3 3 20
1 1
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1 3
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1 1
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4 6
1 3
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6 6
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4 6
 10 10 10
7 19
14 8
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6 6
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18 6
3 1
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8 10
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4 4
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11 9
1 15
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2 12
17 9
11 13
8 2
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1 3
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2 2
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1 3
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3 1
 1 10 10
1 11
2 8
1 13
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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
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1 1
4 6
1 3
1 3
1 1
3 1
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2 6
1 5
2 6
1 1
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4 6
1 5
1 1
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1 3
1 3
6 2
6 2
4 6
4 4
3 1
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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
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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;
struct segment_tree {
  struct node {
    bool ok;
    int mx, mn;
    node(bool ok = true, int mx = -1e9, int mn = 1e9)
        : ok(ok), mx(mx), mn(mn) {}
    node operator+(node n) {
      return node(ok && n.ok && mn > n.mx, max(mx, n.mx), min(mn, n.mn));
    }
  };
  int n;
  vector<node> tree;
  inline void resize(int n_) {
    n = n_;
    tree.resize(4 * n, node());
  }
  inline void update(int pos, pair<int, int> val) { update(0, 0, n, pos, val); }
  void update(int v, int vl, int vr, int pos, pair<int, int> val) {
    if (pos < vl || vr <= pos) {
      return;
    }
    if (vr - vl == 1) {
      tree[v].mx = val.second;
      tree[v].mn = val.first;
      tree[v].ok = (val.second < val.first);
      return;
    }
    int vm = (vl + vr) / 2;
    update(2 * v + 1, vl, vm, pos, val);
    update(2 * v + 2, vm, vr, pos, val);
    tree[v] = tree[2 * v + 1] + tree[2 * v + 2];
  }
  inline bool ok() { return tree[0].ok; }
};
signed main() {
  ios::sync_with_stdio(false);
  cin.tie(0), cout.tie(0);
  int n, m, q;
  cin >> n >> m >> q;
  segment_tree tree;
  tree.resize(n);
  array<vector<set<int>>, 2> all = {vector<set<int>>(n), vector<set<int>>(n)};
  while (q--) {
    int x, y;
    cin >> x >> y;
    int xx = (x - 1) / 2, yy = (y - 1) / 2;
    if (all[x % 2][xx].find(yy) == all[x % 2][xx].end()) {
      all[x % 2][xx].insert(yy);
    } else {
      all[x % 2][xx].erase(yy);
    }
    tree.update(xx, {all[1][xx].size() ? *all[1][xx].begin() : 1e9,
                     all[0][xx].size() ? *all[0][xx].rbegin() : -1e9});
    cout << (tree.ok() ? "YES\n" : "NO\n");
  }
}
