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 int N = 800005;
int n, m, q, sa[N], sb[N], s[N];
set<int> a[N], b[N];
void modify(int x, int l, int r, int k, int val, int id) {
  if (l == r) {
    if (id)
      sa[x] = val;
    else
      sb[x] = val;
    s[x] = (sa[x] <= -sb[x]);
    return;
  }
  int mid = (l + r) >> 1;
  if (k <= mid)
    modify(x << 1, l, mid, k, val, id);
  else
    modify(x << 1 | 1, mid + 1, r, k, val, id);
  sa[x] = min(sa[x << 1], sa[x << 1 | 1]);
  sb[x] = min(sb[x << 1], sb[x << 1 | 1]);
  s[x] = s[x << 1] || s[x << 1 | 1] || sa[x << 1] <= -sb[x << 1 | 1];
}
int main() {
  scanf("%d%d%d", &n, &m, &q);
  for (int i = 1; i <= n; i++) a[i].insert(0x3f3f3f3f), b[i].insert(0);
  memset(sa, 0x3f, sizeof(sa));
  while (q--) {
    int x, y, id;
    scanf("%d%d", &x, &y);
    id = x & 1, x = (x + 1) / 2, y = (y + 1) / 2;
    if (id) {
      if (a[x].find(y) != a[x].end())
        a[x].erase(y);
      else
        a[x].insert(y);
      modify(1, 1, n, x, *a[x].begin(), 1);
      if (s[1])
        printf("NO\n");
      else
        printf("YES\n");
    } else {
      if (b[x].find(-y) != b[x].end())
        b[x].erase(-y);
      else
        b[x].insert(-y);
      modify(1, 1, n, x, *b[x].begin(), 0);
      if (s[1])
        printf("NO\n");
      else
        printf("YES\n");
    }
  }
}
