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
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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
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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
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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
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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

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#include <bits/stdc++.h>
using namespace std;
const int MAXN = 200005;
int n, m, q, cnt, ofs = 1, rip;
int x[MAXN], y[MAXN], tip[MAXN], s[MAXN], f[MAXN];
int t[MAXN * 4][2], sol[MAXN * 2];
map<pair<int, int>, int> mp;
vector<pair<int, int> > v;
vector<int> r[MAXN * 4], h[MAXN * 2][2];
void update(int pos, int val, int ind) {
  pos += ofs;
  t[pos][ind] = val;
  pos /= 2;
  while (pos > 0) {
    if (ind == 0) t[pos][0] = max(t[pos * 2][0], t[pos * 2 + 1][0]);
    if (ind == 1) t[pos][1] = min(t[pos * 2][1], t[pos * 2 + 1][1]);
    pos /= 2;
  }
}
int upit(int x, int from, int to, int lo, int hi, int ind) {
  if (from <= lo && hi <= to) return t[x][ind];
  if (to < lo || hi < from) return (ind == 0 ? -1 : 1e9);
  if (ind == 0)
    return max(upit(2 * x, from, to, lo, (lo + hi) / 2, 0),
               upit(2 * x + 1, from, to, (lo + hi) / 2 + 1, hi, 0));
  if (ind == 1)
    return min(upit(2 * x, from, to, lo, (lo + hi) / 2, 1),
               upit(2 * x + 1, from, to, (lo + hi) / 2 + 1, hi, 1));
}
void ubaci(int i) {
  v.push_back({i, rip});
  if (tip[i] == 0) {
    h[x[i]][0].push_back(max(y[i], h[x[i]][0].back()));
    if (t[x[i] + ofs][0] <= y[i]) update(x[i], y[i], 0);
    if (upit(1, 0, x[i], 0, ofs - 1, 1) <= y[i]) rip++;
  } else {
    h[x[i]][1].push_back(min(y[i], h[x[i]][1].back()));
    if (y[i] <= t[x[i] + ofs][1]) update(x[i], y[i], 1);
    if (y[i] <= upit(1, x[i], ofs - 1, 0, ofs - 1, 0)) rip++;
  }
}
void makni() {
  int i = v.back().first;
  rip = v.back().second;
  v.pop_back();
  h[x[i]][tip[i]].pop_back();
  update(x[i], h[x[i]][tip[i]].back(), tip[i]);
}
void add_query(int x, int from, int to, int lo, int hi, int ind) {
  if (from <= lo && hi <= to) {
    r[x].push_back(ind);
    return;
  }
  if (to < lo || hi < from) return;
  add_query(2 * x, from, to, lo, (lo + hi) / 2, ind);
  add_query(2 * x + 1, from, to, (lo + hi) / 2 + 1, hi, ind);
}
void dfs(int x, int lo, int hi) {
  int siz = v.size();
  for (auto i : r[x]) ubaci(i);
  if (lo == hi) {
    sol[lo] = (rip == 0);
  } else {
    dfs(2 * x, lo, (lo + hi) / 2);
    dfs(2 * x + 1, (lo + hi) / 2 + 1, hi);
  }
  while (v.size() > siz) makni();
}
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cin >> n >> m >> q;
  while (ofs < max(max(n, m), q)) ofs *= 2;
  for (int i = 0; i < 2 * ofs; i++) {
    t[i][0] = -1, t[i][1] = 1e9;
    if (i < ofs) {
      h[i][0].push_back(-1);
      h[i][1].push_back(1e9);
    }
  }
  for (int i = 0; i < q; i++) {
    int a, b;
    cin >> a >> b;
    a--;
    b--;
    if (mp.find({a, b}) == mp.end()) {
      cnt++;
      x[cnt] = a / 2;
      y[cnt] = b / 2;
      tip[cnt] = !(a % 2);
      s[cnt] = i;
      f[cnt] = ofs;
      mp[{a, b}] = cnt;
    } else {
      int ind = mp[{a, b}];
      f[ind] = i;
      mp.erase({a, b});
    }
  }
  for (int i = 1; i <= cnt; i++) {
    add_query(1, s[i], f[i] - 1, 0, ofs - 1, i);
  }
  dfs(1, 0, ofs - 1);
  for (int i = 0; i < q; i++) {
    cout << (sol[i] ? "YES\n" : "NO\n");
  }
  return 0;
}
