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
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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
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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2 4
1 3
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1 1
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1 1
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1 3
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2 4
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1 1
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1 1
2 4
1 3
1 3
2 2
1 1
2 2
1 1
1 3
1 1
2 2
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
1 3
2 2
2 2
1 1
2 4
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
2 4
2 2
 3 3 20
1 1
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1 1
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5 1
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1 3
4 4
1 1
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4 4
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
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
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6 4
2 2
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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
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1 1
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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
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
2 2
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1 1
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1 1
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1 1
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 = (int)2e5 + 100;
struct Node {
  int low;
  int high;
  bool valid;
};
Node T[N * 4 + 512];
Node unite(Node A, Node B) {
  Node sol;
  sol.valid = (A.valid | B.valid);
  sol.low = min(A.low, B.low);
  sol.high = max(A.high, B.high);
  if (A.low <= B.high) sol.valid = true;
  return sol;
}
set<int> L[N];
set<int> R[N];
void update(int node, int cl, int cr, int pos) {
  if (cl == cr) {
    int ai = (int)1e9;
    int bi = -1;
    if (!L[cl].empty()) ai = *L[cl].begin();
    if (!R[cl].empty()) {
      auto it = R[cl].end();
      it--;
      bi = *it;
    }
    T[node] = {ai, bi, false};
    if (ai <= bi) T[node].valid = true;
    return;
  }
  int mid = (cl + cr) / 2;
  if (mid >= pos)
    update(node * 2, cl, mid, pos);
  else
    update(node * 2 + 1, mid + 1, cr, pos);
  T[node] = unite(T[node * 2], T[node * 2 + 1]);
}
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  ;
  int n, m, qr;
  cin >> n >> m >> qr;
  for (int i = 0; i < N * 4 + 512; i++) {
    T[i] = {(int)1e9, -1, false};
  }
  int xi, yi;
  int pp, qq;
  for (int t = 1; t <= qr; t++) {
    cin >> xi >> yi;
    xi--;
    yi--;
    pp = xi / 2;
    qq = yi / 2;
    if (xi % 2 == 0) {
      if (L[pp].count(qq))
        L[pp].erase(qq);
      else
        L[pp].insert(qq);
    } else {
      if (R[pp].count(qq))
        R[pp].erase(qq);
      else
        R[pp].insert(qq);
    }
    update(1, 0, n - 1, pp);
    if (T[1].valid)
      cout << "NO\n";
    else
      cout << "YES\n";
  }
  return 0;
}
