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;
struct SegmentTree {
  int dat, l, r;
} t[200002 * 4];
int n, m, q, i, cnt;
map<pair<int, int>, int> d;
set<pair<int, int> > sl, sr;
int read() {
  char c = getchar();
  int w = 0;
  while (c < '0' || c > '9') c = getchar();
  while (c <= '9' && c >= '0') {
    w = w * 10 + c - '0';
    c = getchar();
  }
  return w;
}
void build(int p, int l, int r) {
  t[p].dat = 1;
  t[p].l = m + 1;
  if (l == r) return;
  int mid = (l + r) / 2;
  build(p * 2, l, mid);
  build(p * 2 + 1, mid + 1, r);
}
void update(int p) {
  t[p].l = min(t[p * 2].l, t[p * 2 + 1].l);
  t[p].r = max(t[p * 2].r, t[p * 2 + 1].r);
  t[p].dat = (t[p * 2].dat && t[p * 2 + 1].dat && t[p * 2].l > t[p * 2 + 1].r);
}
void change1(int p, int l, int r, int x, int v, int op) {
  if (l == r) {
    if (op == 0)
      t[p].l = min(t[p].l, v);
    else
      t[p].l = v;
    if (t[p].l <= t[p].r) t[p].dat = 0;
    return;
  }
  int mid = (l + r) / 2;
  if (x <= mid)
    change1(p * 2, l, mid, x, v, op);
  else
    change1(p * 2 + 1, mid + 1, r, x, v, op);
  update(p);
}
void change2(int p, int l, int r, int x, int v, int op) {
  if (l == r) {
    if (op == 0)
      t[p].r = max(t[p].r, v);
    else
      t[p].r = v;
    if (t[p].l <= t[p].r) t[p].dat = 0;
    return;
  }
  int mid = (l + r) / 2;
  if (x <= mid)
    change2(p * 2, l, mid, x, v, op);
  else
    change2(p * 2 + 1, mid + 1, r, x, v, op);
  update(p);
}
int main() {
  n = read();
  m = read();
  q = read();
  build(1, 1, n);
  for (i = 1; i <= q; i++) {
    int x = read(), y = read();
    pair<int, int> p = make_pair((x + 1) / 2, (y + 1) / 2);
    if (x % 2 == 1) {
      if (d[p] == 0) {
        d[p] = 1;
        sr.insert(p);
        change1(1, 1, n, p.first, p.second, 0);
      } else if (d[p] == 1) {
        d[p] = 0;
        set<pair<int, int> >::iterator it =
            sr.lower_bound(make_pair(p.first - 1, m + 1));
        if ((*it) == p) {
          it++;
          if (it == sr.end() || (*it).first != p.first)
            change1(1, 1, n, p.first, m + 1, 1);
          else
            change1(1, 1, n, p.first, (*it).second, 1);
        }
        sr.erase(p);
      } else if (d[p] == 3) {
        d[p] = 2;
        sl.insert(p);
        cnt--;
        change2(1, 1, n, p.first, p.second, 0);
      } else {
        d[p] = 3;
        cnt++;
        set<pair<int, int> >::iterator it =
            sl.lower_bound(make_pair(p.first, p.second + 1));
        if (it == sl.end() || (*it).first != p.first) {
          it--;
          if (it == sl.begin() || (*(--it)).first != p.first)
            change2(1, 1, n, p.first, 0, 1);
          else
            change2(1, 1, n, p.first, (*it).second, 1);
        }
        sl.erase(p);
      }
    } else {
      if (d[p] == 0) {
        d[p] = 2;
        sl.insert(p);
        change2(1, 1, n, p.first, p.second, 0);
      } else if (d[p] == 2) {
        d[p] = 0;
        set<pair<int, int> >::iterator it =
            sl.lower_bound(make_pair(p.first, p.second + 1));
        if (it == sl.end() || (*it).first != p.first) {
          it--;
          if (it == sl.begin() || (*(--it)).first != p.first)
            change2(1, 1, n, p.first, 0, 1);
          else
            change2(1, 1, n, p.first, (*it).second, 1);
        }
        sl.erase(p);
      } else if (d[p] == 3) {
        d[p] = 1;
        sr.insert(p);
        cnt--;
        change1(1, 1, n, p.first, p.second, 0);
      } else {
        d[p] = 3;
        cnt++;
        set<pair<int, int> >::iterator it =
            sr.lower_bound(make_pair(p.first - 1, m + 1));
        if ((*it) == p) {
          it++;
          if (it == sr.end() || (*it).first != p.first)
            change1(1, 1, n, p.first, m + 1, 1);
          else
            change1(1, 1, n, p.first, (*it).second, 1);
        }
        sr.erase(p);
      }
    }
    if (cnt != 0 || t[1].dat == 0)
      puts("NO");
    else
      puts("YES");
  }
  return 0;
}
