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
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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
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10 2
19 9
19 17
8 8
5 3
20 4
12 12
2 16
5 19
2 4
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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
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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
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1 3
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2 2
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1 3
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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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1 19
2 10
2 4
2 18
2 12
2 6
2 14
2 2
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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 3
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 4
2 2
1 3
2 2
1 1
2 4
1 1
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2 4
2 4
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
1 3
1 1
2 4
1 3
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1 1
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
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1 1
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4 6
1 3
3 5
6 6
1 1
6 6
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3 3
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
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11 9
1 15
2 2
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2 12
17 9
11 13
8 2
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4 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
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1 11
2 8
1 13
2 2
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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
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;
int const nax = 4e5 + 10;
struct node_t {
  int lowest_L;
  int highest_R;
  bool result;
  node_t(int lowest_L = nax, int highest_R = -1, bool result = false)
      : lowest_L(lowest_L), highest_R(highest_R), result(result) {}
};
node_t operator+(const node_t &l, const node_t &r) {
  node_t res;
  res.result = l.result | r.result;
  if (l.lowest_L <= r.highest_R) res.result = true;
  res.lowest_L = min(l.lowest_L, r.lowest_L);
  res.highest_R = max(l.highest_R, r.highest_R);
  return res;
}
node_t sg[nax << 2];
set<int> keep[nax];
void update(int v, int x, int y, int pos) {
  if (x == y) {
    node_t &a = sg[v];
    if (pos % 2) {
      a = node_t(keep[x].empty() ? nax : *keep[x].begin(), -1, false);
    } else {
      a = node_t(nax, keep[x].empty() ? -1 : *keep[x].rbegin(), false);
    }
  } else {
    int mid = x + y >> 1;
    if (pos <= mid)
      update(v << 1, x, mid, pos);
    else
      update(v << 1 | 1, mid + 1, y, pos);
    sg[v] = sg[v << 1] + sg[v << 1 | 1];
  }
}
int n, m, q;
int main() {
  cin.tie(0)->sync_with_stdio(false);
  cin >> n >> m >> q;
  for (; q--;) {
    int x, y;
    cin >> x >> y;
    if (keep[x].count(y)) {
      keep[x].erase(keep[x].find(y));
    } else
      keep[x].insert(y);
    update(1, 1, 2 * n, x);
    cout << (sg[1].result ? "NO" : "YES") << '\n';
  }
}
