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
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1 1
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2 2
1 1
2 2
2 2
1 1
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1 1
1 1
2 2
2 2
2 2
2 2
2 2
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2 2
2 2
1 1
2 2
2 2
1 1
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1 1
2 2
1 1
2 2
1 1
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1 1
1 1
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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
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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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2 2
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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
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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
1 1
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
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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2 6
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 10 10 10
17 11
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8 8
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9 13
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13 17
 1 10 10
2 16
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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 3
1 3
2 2
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
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
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1 3
1 3
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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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
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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
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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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3 1
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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
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
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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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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 = 3e5;
struct node {
  int l, r, a, b;
  bool ok;
} seg[maxn * 4 * 2];
void build(int i, int l, int r) {
  seg[i].l = l;
  seg[i].r = r;
  seg[i].a = INT32_MAX;
  seg[i].b = 0;
  seg[i].ok = true;
  if (l == r) return;
  int mid = (l + r) / 2;
  build(i << 1, l, mid);
  build((i << 1) | 1, mid + 1, r);
}
void pushup(int i) {
  int a = min(seg[i << 1].a, seg[(i << 1) | 1].a);
  int b = max(seg[i << 1].b, seg[(i << 1) | 1].b);
  seg[i].a = a, seg[i].b = b,
  seg[i].ok = seg[i << 1].ok && seg[(i << 1) | 1].ok &&
              seg[i << 1].a > seg[(i << 1) | 1].b;
}
void update(int i, int k, int a, int b) {
  if (seg[i].l == k && seg[i].r == k) {
    seg[i].a = a, seg[i].b = b, seg[i].ok = a > b;
    return;
  }
  int mid = (seg[i].l + seg[i].r) / 2;
  if (k <= mid)
    update(i << 1, k, a, b);
  else
    update((i << 1) | 1, k, a, b);
  pushup(i);
}
set<int> L[maxn * 2];
set<int> R[maxn * 2];
set<pair<int, int>> dat;
int main() {
  int n, m, q;
  cin >> n >> m >> q;
  build(1, 1, 2 * n);
  for (int i = 1; i <= n * 2; ++i) {
    L[i].insert(INT32_MAX);
    R[i].insert(0);
  }
  for (int i = 0; i < q; ++i) {
    int ii, jj;
    scanf("%d%d", &ii, &jj);
    bool erase = dat.count({ii, jj});
    if (erase) {
      dat.erase({ii, jj});
      if (ii & 1)
        L[ii].erase(jj);
      else
        R[ii].erase(jj);
      update(1, ii, *L[ii].begin(), *R[ii].rbegin());
    } else {
      dat.insert({ii, jj});
      if (ii & 1)
        L[ii].insert(jj);
      else
        R[ii].insert(jj);
      update(1, ii, *L[ii].begin(), *R[ii].rbegin());
    }
    cout << (seg[1].ok ? "YES\n" : "NO\n");
  }
}
