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
1 5
2 2
2 4
2 2
1 3
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1 5
2 4
2 6
2 2
1 5
2 6
2 6
2 6
1 3
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2 2
2 2
1 1
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1 3
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2 2
2 4
1 5
2 2
2 6
1 3
1 3
1 3
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1 3
1 1
 10 10 10
17 11
11 15
8 8
2 4
7 7
9 13
12 8
18 2
15 13
13 17
 1 10 10
2 16
1 1
1 19
2 10
2 4
2 18
2 12
2 6
2 14
2 2
 1 2 100
1 3
2 2
2 4
1 3
2 4
1 1
2 2
1 1
2 4
2 2
2 2
1 3
2 4
1 3
2 4
2 2
2 2
2 4
1 3
2 2
2 4
1 1
2 4
1 3
1 1
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2 4
2 2
1 1
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1 1
1 1
1 1
1 1
2 2
2 4
1 1
1 3
2 4
1 1
1 1
2 4
1 3
1 1
2 4
2 4
1 1
1 1
2 4
2 4
2 4
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
2 4
2 4
2 4
2 2
2 2
1 3
2 2
2 2
1 1
2 4
1 1
2 2
2 2
1 1
2 2
1 3
1 3
1 3
1 1
2 4
1 3
1 3
1 1
1 1
1 1
2 4
1 3
1 1
2 4
2 2
 3 3 20
1 1
3 1
1 1
1 1
5 1
3 5
1 3
4 4
1 1
3 1
4 4
4 6
1 3
3 5
6 6
1 1
6 6
1 1
3 3
4 6
 10 10 10
7 19
14 8
15 13
6 6
10 8
18 6
3 1
16 4
8 10
12 12
 10 10 10
4 4
18 20
11 9
1 15
2 2
14 6
2 12
17 9
11 13
8 2
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4 2
6 4
1 3
4 2
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
2 2
1 1
2 2
1 1
2 2
1 1
1 1
1 1
1 1
1 1
2 2
1 1
2 2
1 1
1 1
2 2
1 1
 1 1 1
2 2
 1 10 10
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

YES
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#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 10;
map<int, bool> mp[N * 2];
set<int> lp[N], rd[N];
bool is[N << 2];
int mn[N << 2], mx[N << 2], n, m;
void build(int k, int l, int r) {
  mx[k] = 0;
  mn[k] = n + 1;
  is[k] = 0;
  if (l == r) return;
  int mid = l + r >> 1;
  build(k << 1, l, mid);
  build(k << 1 | 1, mid + 1, r);
}
void push_up(int k) {
  mx[k] = max(mx[k << 1], mx[k << 1 | 1]);
  mn[k] = min(mn[k << 1], mn[k << 1 | 1]);
  is[k] = (is[k << 1] || is[k << 1 | 1] || mx[k << 1 | 1] >= mn[k << 1]);
}
void upd(int k, int l, int r, int x) {
  if (l == r) {
    mn[k] = (lp[l].size() ? *lp[l].begin() : n + 1);
    mx[k] = (rd[l].size() ? *rd[l].rbegin() : 0);
    is[k] = (mx[k] >= mn[k]);
    return;
  }
  int mid = l + r >> 1;
  if (x <= mid)
    upd(k << 1, l, mid, x);
  else
    upd(k << 1 | 1, mid + 1, r, x);
  push_up(k);
}
signed main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int q, x, y;
  cin >> n >> m >> q;
  build(1, 1, m);
  while (q--) {
    cin >> x >> y;
    if (mp[x][y]) {
      mp[x][y] = 0;
      y = (y + 1) / 2;
      if (x & 1)
        lp[y].erase(x / 2 + 1);
      else
        rd[y].erase(x / 2);
    } else {
      mp[x][y] = 1;
      y = (y + 1) / 2;
      if (x & 1)
        lp[y].insert(x / 2 + 1);
      else
        rd[y].insert(x / 2);
    }
    upd(1, 1, m, y);
    cout << (is[1] ? "NO" : "YES") << '\n';
  }
  return 0;
}
