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
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1 1
2 2
1 1
1 1
1 1
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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
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2 2
2 4
2 2
1 3
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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
 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
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1 3
2 4
2 2
2 2
2 4
1 3
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2 4
1 1
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1 3
1 1
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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
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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
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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
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1 1
1 1
1 1
1 1
1 1
2 2
1 1
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1 1
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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

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#include <bits/stdc++.h>
using namespace std;
const int Rea = 1e5 + 3;
struct Rin {
  char c;
  inline char gc() {
    static char rea[Rea];
    static char *head, *tail;
    return head == tail && (tail = (head = rea) + fread(rea, 1, Rea, stdin),
                            head == tail)
               ? EOF
               : *head++;
  }
  inline Rin &operator>>(int &x) {
    bool tag = false;
    x = 0;
    for (c = gc(); c > '9' || c < '0'; c = gc())
      if (c == '-') {
        c = gc();
        tag = true;
        break;
      }
    for (; c >= '0' && c <= '9'; c = gc()) x = (x << 1) + (x << 3) + (c ^ '0');
    if (tag) x = -x;
    return *this;
  }
  inline Rin &operator>>(long long &x) {
    bool tag = false;
    x = 0;
    for (c = gc(); c > '9' || c < '0'; c = gc())
      if (c == '-') {
        c = gc();
        tag = true;
        break;
      }
    for (; c >= '0' && c <= '9'; c = gc()) x = (x << 1) + (x << 3) + (c ^ '0');
    if (tag) x = -x;
    return *this;
  }
} rin;
inline void jh(int &x, int &y) {
  if (x ^ y) x ^= y ^= x ^= y;
  return;
}
inline void jh(long long &x, long long &y) {
  if (x ^ y) x ^= y ^= x ^= y;
  return;
}
inline int min(int x, int y) { return x < y ? x : y; }
inline int max(int x, int y) { return x > y ? x : y; }
inline long long min(long long x, long long y) { return x < y ? x : y; }
inline long long max(long long x, long long y) { return x > y ? x : y; }
int n, m, q;
const int N = 2e5 + 3;
set<int> zjj[N];
set<int> gyq[N];
namespace tietietree {
struct node {
  bool ans;
  int zjj, gyq;
  inline void init() {
    zjj = m + 1;
    gyq = 0;
    ans = false;
    return;
  }
} nod[N << 2];
inline void up(int i) {
  nod[i].zjj = min(nod[(i << 1)].zjj, nod[((i << 1) | 1)].zjj);
  nod[i].gyq = max(nod[(i << 1)].gyq, nod[((i << 1) | 1)].gyq);
  nod[i].ans = nod[(i << 1)].ans || nod[((i << 1) | 1)].ans ||
               (nod[(i << 1)].zjj <= nod[((i << 1) | 1)].gyq);
  return;
}
inline void maketree(int l, int r, int i) {
  nod[i].init();
  if (l == r) return;
  int mid = l + r >> 1;
  maketree(l, mid, (i << 1));
  maketree(mid + 1, r, ((i << 1) | 1));
  return;
}
inline void updata(int l, int r, int i, int qx) {
  set<int>::iterator fd;
  if (l == r) {
    nod[i].zjj = zjj[l].empty() ? m + 1 : *zjj[l].begin();
    nod[i].gyq = gyq[l].empty() ? 0 : (fd = gyq[l].end(), *(--fd));
    nod[i].ans = (nod[i].zjj <= nod[i].gyq);
    return;
  }
  int mid = l + r >> 1;
  if (qx <= mid)
    updata(l, mid, (i << 1), qx);
  else
    updata(mid + 1, r, ((i << 1) | 1), qx);
  up(i);
  return;
}
}  // namespace tietietree
using namespace tietietree;
map<pair<int, int>, bool> qy;
void work() {
  int x, y, z;
  rin >> x >> y;
  if (qy.find(make_pair(x, y)) == qy.end()) {
    if (x & 1)
      zjj[x + 1 >> 1].insert(y + 1 >> 1);
    else
      gyq[x >> 1].insert(y >> 1);
  } else {
    if (x & 1)
      zjj[x + 1 >> 1].erase(y + 1 >> 1);
    else
      gyq[x >> 1].erase(y >> 1);
  }
  updata(1, n, 1, x + 1 >> 1);
  puts(nod[1].ans ? "NO" : "YES");
  return;
}
int main() {
  rin >> n >> m >> q;
  maketree(1, n, 1);
  for (; q; q--) work();
  return 0;
}
