3 3 20
4 4
2 4
2 2
2 2
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2 2
2 2
2 2
5 5
5 5
3 5
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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
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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
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1 1
2 2
2 2
1 1
1 1
1 1
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2 2
2 2
1 1
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1 1
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1 1
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1 1
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1 1
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1 1
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1 1
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 1 10 10
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2 16
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2 4
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1 15
2 8
2 6
2 16
2 14
2 4
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7 17
6 6
1 1
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2 6
1 1
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1 3
2 6
1 5
2 6
2 2
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1 1
2 4
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1 1
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1 3
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2 6
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2 2
1 3
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2 4
1 3
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1 3
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2 6
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 10 10 10
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13 17
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2 16
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2 4
2 18
2 12
2 6
2 14
2 2
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1 3
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2 4
1 3
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1 1
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1 1
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1 1
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1 1
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1 1
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1 1
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1 1
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1 3
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1 1
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4 6
1 3
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6 6
1 1
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4 6
 10 10 10
7 19
14 8
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6 6
10 8
18 6
3 1
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8 10
12 12
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4 4
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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
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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;
using namespace std::chrono;
const long long int mod = 1000000007;
const long long int inf = 2.19e15 + 1;
const long double pai = 3.141592653589793238462643383279502884197;
const long double eps = 1e-10;
template <class T, class U>
bool chmin(T& a, U b) {
  if (a > b) {
    a = b;
    return true;
  }
  return false;
}
template <class T, class U>
bool chmax(T& a, U b) {
  if (a < b) {
    a = b;
    return true;
  }
  return false;
}
long long int gcd(long long int a, long long int b) {
  if (a % b == 0) {
    return b;
  } else
    return gcd(b, a % b);
}
long long int lcm(long long int a, long long int b) {
  if (a == 0) {
    return b;
  }
  return a / gcd(a, b) * b;
}
template <class T>
void SO(T& ve) {
  sort(ve.begin(), ve.end());
}
template <class T>
void REV(T& ve) {
  reverse(ve.begin(), ve.end());
}
template <class T>
long long int LBI(const vector<T>& ar, T in) {
  return lower_bound(ar.begin(), ar.end(), in) - ar.begin();
}
template <class T>
long long int UBI(const vector<T>& ar, T in) {
  return upper_bound(ar.begin(), ar.end(), in) - ar.begin();
}
int main(void) {
  int i, j, n, m, Q, dme = 0;
  cin >> n >> m >> Q;
  static int ue[524288] = {};
  static int st[524288];
  static bool fl[524288] = {};
  for (i = 1; i < 524288; i++) {
    st[i] = mod;
  }
  set<pair<int, int>> ues;
  set<pair<int, int>> sts;
  while (Q--) {
    int a, b;
    cin >> a >> b;
    a--;
    b--;
    bool aaa = a % 2;
    a /= 2;
    b /= 2;
    b += 2;
    int ns = 0;
    if (aaa) {
      if (ues.count(make_pair(a, b))) {
        ues.erase(make_pair(a, b));
      } else {
        ues.insert(make_pair(a, b));
      }
      auto itr = ues.lower_bound(make_pair(a, mod));
      if (itr != ues.begin()) {
        itr--;
        ns = itr->second;
      } else {
        ns = 0;
      }
      int bas = 262144 + a;
      if (fl[bas]) {
        fl[bas] = 0;
        dme--;
      }
      ue[bas] = ns;
      if (st[bas] <= ue[bas]) {
        fl[bas] = 1;
        dme++;
      }
      bas /= 2;
      while (bas > 0) {
        if (fl[bas]) {
          fl[bas] = 0;
          dme--;
        }
        ue[bas] = max(ue[bas + bas], ue[bas + bas + 1]);
        if (st[bas + bas] <= ue[bas + bas + 1]) {
          fl[bas] = 1;
          dme++;
        }
        bas /= 2;
      }
    } else {
      if (sts.count(make_pair(a, b))) {
        sts.erase(make_pair(a, b));
      } else {
        sts.insert(make_pair(a, b));
      }
      auto itr = sts.lower_bound(make_pair(a, -mod));
      if (itr != sts.end()) {
        ns = itr->second;
      } else {
        ns = mod;
      }
      int bas = 262144 + a;
      if (fl[bas]) {
        dme--;
      }
      st[bas] = ns;
      if (st[bas] <= ue[bas]) {
        fl[bas] = 1;
        dme++;
      }
      bas /= 2;
      while (bas > 0) {
        if (fl[bas]) {
          fl[bas] = 0;
          dme--;
        }
        st[bas] = min(st[bas + bas], st[bas + bas + 1]);
        if (st[bas + bas] <= ue[bas + bas + 1]) {
          fl[bas] = 1;
          dme++;
        }
        bas /= 2;
      }
    }
    cout << (dme ? "No" : "Yes") << endl;
  }
  return 0;
}
