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
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2 6
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1 5
2 6
2 6
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1 3
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 10 10 10
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11 15
8 8
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7 7
9 13
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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 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 3
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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5 1
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1 3
4 4
1 1
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4 6
1 3
3 5
6 6
1 1
6 6
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4 6
 10 10 10
7 19
14 8
15 13
6 6
10 8
18 6
3 1
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8 10
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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
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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
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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;
const int N = 2e5 + 5;
struct node {
  int val[2];
  int kt;
};
node ST[4 * N];
int n, m, q;
multiset<int> cur[N][2];
map<pair<int, int>, int> vis;
node mer(node a, node b) {
  node res;
  res.val[0] = min(a.val[0], b.val[0]);
  res.val[1] = max(a.val[1], b.val[1]);
  res.kt = max(a.kt, b.kt);
  if (a.val[0] <= b.val[1]) res.kt = 1;
  return res;
}
void update(int id, int l, int r, int pos, int x, int type) {
  if (pos < l || pos > r) return;
  if (l == r) {
    ST[id].val[type] = x;
    return;
  }
  int mid = (l + r) / 2;
  update(id * 2, l, mid, pos, x, type);
  update(id * 2 + 1, mid + 1, r, pos, x, type);
  ST[id] = mer(ST[id * 2], ST[id * 2 + 1]);
}
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(nullptr);
  cin >> n >> m >> q;
  for (int i = 1; i < 4 * N; i++) {
    ST[i].val[0] = 1e9;
    ST[i].val[1] = -1e9;
    ST[i].kt = 0;
  }
  while (q--) {
    int i, j, type;
    cin >> i >> j;
    int x = (i - 1) / 2 + 1;
    int y = (j - 1) / 2 + 1;
    if (i % 2)
      type = 0;
    else
      type = 1;
    if (vis[make_pair(i, j)]) {
      cur[x][type].erase(cur[x][type].find(y));
      if (type == 0) {
        if (cur[x][0].size())
          update(1, 1, n + 1, x, *cur[x][0].begin(), 0);
        else
          update(1, 1, n + 1, x, 1e9, 0);
      } else {
        if (cur[x][1].size())
          update(1, 1, n + 1, x + 1, *cur[x][1].rbegin(), 1);
        else
          update(1, 1, n + 1, x + 1, -1e9, 1);
      }
    } else {
      cur[x][type].insert(y);
      if (type == 0)
        update(1, 1, n + 1, x, *cur[x][0].begin(), 0);
      else
        update(1, 1, n + 1, x + 1, *cur[x][1].rbegin(), 1);
    }
    vis[make_pair(i, j)] ^= 1;
    if (ST[1].kt)
      cout << "NO";
    else
      cout << "YES";
    cout << '\n';
  }
}
