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
2 2
1 5
2 4
2 6
2 2
1 5
2 6
2 6
2 6
1 3
1 5
2 2
2 2
1 1
1 5
1 3
1 3
2 2
2 4
1 5
2 2
2 6
1 3
1 3
1 3
 2 2 2
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
1 1
2 4
2 2
1 1
1 3
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
 3 2 10
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
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
 YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
 YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
 YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
 YES
NO
YES
YES
YES
NO
YES
NO
NO
YES
YES
YES
YES
NO
YES
YES
YES
NO
YES
YES
 YES
NO
YES
YES
YES
YES
YES
NO
NO
NO
NO
YES
YES
NO
NO
NO
YES
YES
YES
NO
 YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
 YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
 YES
YES
YES
NO
YES
NO
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
 YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
 YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
NO
YES
NO
YES
NO
YES
YES
YES
NO
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
NO
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
NO
YES
YES
YES
NO
YES
NO
YES
YES
YES
NO
YES
NO
YES
YES
YES
NO
YES
NO
YES
NO
YES
NO
YES
YES
YES
YES
YES
NO
YES
NO
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
 YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
 YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
 YES
YES
YES
YES
YES
NO
NO
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
 YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
 YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
 YES
NO
 YES
NO
NO
YES
YES
NO
YES
YES
NO
NO
NO
YES
YES
YES
NO
YES
YES
NO
YES
YES
NO
NO
YES
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
NO
NO
YES
YES
YES
NO
NO
YES
NO
NO
NO
NO
NO
YES
NO
NO
YES
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
NO
NO
NO
YES
NO
NO
NO
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
 YES
YES
 YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
 YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
 YES
YES
NO
YES
YES
NO
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
YES
NO
NO
NO
YES
NO
NO
NO
NO
NO
NO
YES
NO
NO
NO
YES
NO
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
NO
NO
NO
NO
YES
YES
YES
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
YES
NO
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
NO
NO
NO
NO
NO
NO
YES
YES
YES
NO
YES
NO
NO
NO
YES
YES
YES
 YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
YES
NO
NO
YES
NO
NO
NO
YES
NO
YES
 YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
 YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
 YES
YES
NO
NO
YES
YES
NO
YES
YES
NO
 YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
 YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
 YES
YES
YES
YES
YES
YES
YES
NO
YES
NO
NO
YES
YES
NO
NO
NO
NO
NO
NO
NO
 YES
NO
YES
YES
YES
NO
YES
NO
YES
YES
NO
YES
NO
YES
YES
YES
NO
YES
YES
YES
 YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
 YES
NO
YES
NO
YES
YES
YES
NO
YES
NO
YES
NO
YES
YES
YES
NO
YES
NO
YES
YES
 YES
 YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
 YES
YES
NO
NO
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
 YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
 YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
 YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
 YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
 YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
 YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
 YES
 YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
 YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
 YES
YES
YES
YES
YES
YES
YES
YES
NO
NO

#include <bits/stdc++.h>
using namespace std;
const long long maxn = 2e6 + 100;
const long long mod = 1e9 + 7;
const long long inf = 1e9;
long long n, m, q, mn[maxn], mx[maxn];
set<long long> st[2][maxn];
bool ok[maxn];
void upd(long long id, long long s, long long e, long long i) {
  if (i < s || e <= i) return;
  if (e - s == 1) {
    mn[id] = *st[0][s].begin();
    mx[id] = *st[1][s].rbegin();
    ok[id] = (mx[id] < mn[id]);
    return;
  }
  long long mid = (s + e) / 2;
  upd(id * 2, s, mid, i);
  upd(id * 2 + 1, mid, e, i);
  mn[id] = min(mn[id * 2], mn[id * 2 + 1]);
  mx[id] = max(mx[id * 2], mx[id * 2 + 1]);
  ok[id] = (ok[id * 2] && ok[id * 2 + 1] && (mx[id * 2 + 1] < mn[id * 2]));
  return;
}
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  ;
  long long x, y;
  fill(mn, mn + maxn, inf);
  fill(mx, mx + maxn, -inf);
  fill(ok, ok + maxn, 1);
  cin >> n >> m >> q;
  for (long long i = 0; i < n; i++) {
    st[0][i].insert(inf);
    st[1][i].insert(-inf);
  }
  for (long long i = 0; i < q; i++) {
    cin >> x >> y;
    x--;
    y--;
    if (st[x % 2][x / 2].find(y / 2) == st[x % 2][x / 2].end())
      st[x % 2][x / 2].insert(y / 2);
    else
      st[x % 2][x / 2].erase(y / 2);
    upd(1, 0, n, x / 2);
    cout << (ok[1] ? "YES\n" : "NO\n");
  }
  return 0;
}
