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
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1 1
2 2
1 1
1 1
1 1
2 2
1 1
1 1
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1 1
1 1
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1 1
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1 1
1 1
1 1
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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
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3 3
2 4
3 3
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3 3
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3 1
1 3
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4 2
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1 1
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 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
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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
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2 6
1 5
1 5
2 4
2 4
1 3
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2 4
2 6
1 3
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1 3
2 6
2 2
2 2
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2 6
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1 3
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2 4
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 10 10 10
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8 8
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9 13
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 1 10 10
2 16
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2 18
2 12
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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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2 4
2 4
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 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
3 5
6 6
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 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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3 1
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1 11
2 8
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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
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
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1 3
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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
2 2
2 2
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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 maxn = 4e5 + 5;
struct node {
  int prefmin, sufmax;
  bool ok;
  node() : prefmin(1e9), sufmax(0), ok(true) {}
  node operator+(const node& oth) const {
    node res;
    res.prefmin = min(prefmin, oth.prefmin);
    res.sufmax = max(sufmax, oth.sufmax);
    res.ok = (ok && oth.ok && prefmin > oth.sufmax);
    return res;
  }
} ST[4 * maxn];
int N, M, Q;
void update(int pos, int val, int id = 1, int l = 1, int r = 2 * N) {
  if (pos < l || pos > r) return;
  if (l == r) {
    if (pos & 1) {
      ST[id].prefmin = val;
    } else {
      ST[id].sufmax = val;
    }
    return;
  }
  int mid = (l + r) / 2;
  update(pos, val, id << 1, l, mid);
  update(pos, val, id << 1 | 1, mid + 1, r);
  ST[id] = ST[id << 1] + ST[id << 1 | 1];
}
node get(int L, int R, int id = 1, int l = 1, int r = 2 * N) {
  if (R < l || r < L) return node();
  if (L <= l && r <= R) return ST[id];
  int mid = (l + r) / 2;
  return get(L, R, id << 1, l, mid) + get(L, R, id << 1 | 1, mid + 1, r);
}
set<int> rows[maxn];
signed main(void) {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  cin >> N >> M >> Q;
  for (int tc = 1; tc <= Q; ++tc) {
    int r, c;
    cin >> r >> c;
    if (rows[r].count(c)) {
      rows[r].erase(c);
    } else {
      rows[r].insert(c);
    }
    if (r & 1) {
      update(r, rows[r].empty() ? maxn : *rows[r].begin());
    } else {
      update(r, rows[r].empty() ? 0 : *rows[r].rbegin());
    }
    cout << (ST[1].ok ? "YES" : "NO") << '\n';
  }
}
