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
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1 1
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1 1
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1 1
1 1
1 1
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1 1
1 1
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1 1
1 1
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1 1
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1 1
1 1
1 1
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2 2
1 1
1 1
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1 1
2 2
2 2
2 2
1 1
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2 2
2 2
2 2
2 2
1 1
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2 2
2 2
1 1
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2 2
1 1
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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
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10 2
19 9
19 17
8 8
5 3
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12 12
2 16
5 19
2 4
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2 4
2 4
1 3
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3 3
2 4
3 3
1 3
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4 4
3 1
1 3
3 3
2 2
2 4
4 2
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1 1
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1 19
1 17
2 2
2 10
1 15
2 8
2 6
2 16
2 14
2 4
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8 4
2 4
9 19
16 2
13 7
11 7
7 17
6 6
1 1
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 2 1 2
2 2
1 1
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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
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2 6
1 3
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2 2
2 4
2 2
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2 4
2 6
2 2
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2 6
2 6
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1 3
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2 2
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1 3
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1 5
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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
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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
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1 3
2 4
1 3
2 4
2 2
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1 3
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2 4
1 1
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1 3
1 1
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2 2
2 4
1 1
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2 4
1 1
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1 3
1 1
2 4
2 4
1 1
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2 4
2 4
2 4
1 1
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1 3
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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
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1 1
2 4
1 1
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1 1
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1 3
1 3
1 3
1 1
2 4
1 3
1 3
1 1
1 1
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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>
#pragma GCC target("avx2")
#pragma GCC optimization("O3")
#pragma GCC optimization("unroll-loops")
using namespace std;
void __print(int x) { cerr << x; }
void __print(long x) { cerr << x; }
void __print(long long x) { cerr << x; }
void __print(unsigned x) { cerr << x; }
void __print(unsigned long x) { cerr << x; }
void __print(unsigned long long x) { cerr << x; }
void __print(float x) { cerr << x; }
void __print(double x) { cerr << x; }
void __print(long double x) { cerr << x; }
void __print(char x) { cerr << '\'' << x << '\''; }
void __print(const char *x) { cerr << '\"' << x << '\"'; }
void __print(const string &x) { cerr << '\"' << x << '\"'; }
void __print(bool x) { cerr << (x ? "true" : "false"); }
template <typename T, typename V>
void __print(const pair<T, V> &x) {
  cerr << '{';
  __print(x.first);
  cerr << ',';
  __print(x.second);
  cerr << '}';
}
template <typename T>
void __print(const T &x) {
  int first = 0;
  cerr << '{';
  for (auto &i : x) cerr << (first++ ? "," : ""), __print(i);
  cerr << "}";
}
void _print() { cerr << "]\n"; }
template <typename T, typename... V>
void _print(T t, V... v) {
  __print(t);
  if (sizeof...(v)) cerr << ", ";
  _print(v...);
}
const long long INF = 9e18;
long long mod = 1000000007;
inline long long fast_expo(long long base, long long power,
                           long long modulo = mod) {
  base %= modulo;
  if (base < 0) base += modulo;
  long long x = base, cnt = power, ans = 1;
  while (cnt) {
    if (cnt & 1) ans = (ans * x) % modulo;
    x = (x * x) % modulo;
    cnt >>= 1;
  }
  return ans;
}
long long takemod(long long a, long long mo) {
  a %= mo;
  if (a < 0) a += mo;
  return a;
}
long long modinv(long long a, long long mo) {
  return takemod(fast_expo(takemod(a, mo), mo - 2, mo), mo);
}
const int nax = 4e5 + 5;
set<int> typea[nax];
set<int> typeb[nax];
struct Segtree {
  int siz;
  vector<long long> rowa;
  vector<long long> rowb;
  vector<long long> isbad;
  vector<long long> lo;
  vector<long long> hi;
  Segtree(int n) {
    siz = 4 * n;
    rowa.resize(siz + 1);
    rowb.resize(siz + 1);
    isbad.resize(siz + 1);
    lo.resize(siz + 1);
    hi.resize(siz + 1);
    build(1, n, 1);
  }
  void build(long long l, long long r, long long idx) {
    lo[idx] = l, hi[idx] = r;
    if (l == r) {
      rowa[idx] = INF;
      rowb[idx] = 0;
      isbad[idx] = 0;
      return;
    }
    long long mid = (l + r) / 2;
    build(l, mid, 2 * idx);
    build(mid + 1, r, 2 * idx + 1);
    merge(idx);
  }
  void update(long long idx, long long pos, long long val) {
    if (hi[idx] < pos || lo[idx] > pos) {
      return;
    }
    if (lo[idx] == hi[idx]) {
      if ((int)typea[pos].size())
        rowa[idx] = *typea[pos].begin();
      else
        rowa[idx] = INF;
      if ((int)typeb[pos].size())
        rowb[idx] = *typeb[pos].rbegin();
      else
        rowb[idx] = 0;
      isbad[idx] = rowb[idx] >= rowa[idx];
      return;
    }
    update(2 * idx, pos, val);
    update(2 * idx + 1, pos, val);
    merge(idx);
  }
  long long query(long long idx, long long l, long long r) {
    if (hi[idx] < l || lo[idx] > r) {
      return 0;
    }
    if (l <= lo[idx] && hi[idx] <= r) {
      return isbad[idx];
    }
    long long Left = query(2 * idx, l, r);
    long long Right = query(2 * idx + 1, l, r);
    return Left | Right;
  }
  void merge(long long idx) {
    isbad[idx] = isbad[2 * idx] | isbad[2 * idx + 1];
    rowb[idx] = max(rowb[2 * idx], rowb[2 * idx + 1]);
    rowa[idx] = min(rowa[2 * idx], rowa[2 * idx + 1]);
    isbad[idx] |= rowb[2 * idx + 1] >= rowa[2 * idx];
  }
};
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  long long n, m, q;
  cin >> n >> m >> q;
  Segtree segtree(n);
  while (q--) {
    long long x, y;
    cin >> x >> y;
    if (x & 1) {
      if (typea[(x + 1) / 2].count(y)) {
        typea[(x + 1) / 2].erase(y);
        segtree.update(1, (x + 1) / 2, 314159265358979);
      } else {
        typea[(x + 1) / 2].insert(y);
        segtree.update(1, (x + 1) / 2, 314159265358979);
      }
    } else {
      if (typeb[x / 2].count(y)) {
        typeb[x / 2].erase(y);
        segtree.update(1, x / 2, 314159265358979);
      } else {
        typeb[x / 2].insert(y);
        segtree.update(1, x / 2, 314159265358979);
      }
    }
    cout << (segtree.query(1, 1, 2 * n) ? "NO" : "YES") << "\n";
  }
  return 0;
}
