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

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#include <bits/stdc++.h>
#pragma GCC optimize(2)
namespace __temp_inbuilt {
int read(void) {
  int res = 0, sign = 1;
  char ch = std::getchar();
  while (!std::isdigit(ch)) {
    if (ch == '-') sign = -1;
    ch = std::getchar();
  }
  while (std::isdigit(ch)) res = res * 10 + ch - 48, ch = std::getchar();
  return sign * res;
}
template <class Tp>
void write(const Tp &x) {
  if (x > 9) write(x / 10);
  std::putchar(x % 10 + 48);
}
}  // namespace __temp_inbuilt
using __temp_inbuilt::read;
template <class Tp>
void writeln(const Tp &x) {
  if (x < 0) std::putchar('-'), x = -x;
  __temp_inbuilt::write(x);
  std::putchar('\n');
}
template <class Tp>
void writesp(const Tp &x) {
  if (x < 0) std::putchar('-'), x = -x;
  __temp_inbuilt::write(x);
  std::putchar(' ');
}
template <class Tp>
void write(const Tp &x) {
  if (x < 0) std::putchar('-'), x = -x;
  __temp_inbuilt::write(x);
}
const double PI = 3.1415926535898, E = 2.71828182845904;
namespace contest {
const int MAXN = 2e5 + 19;
std::set<int> LS[MAXN << 1], RS[MAXN << 1];
int n, m, q;
struct Node {
  bool nota;
  int max, min;
} tr[MAXN << 2];
void push_up(int node) {
  tr[node].max = std::max(tr[node << 1].max, tr[node << 1 | 1].max);
  tr[node].min = std::min(tr[node << 1].min, tr[node << 1 | 1].min);
  tr[node].nota = tr[node << 1].nota || tr[node << 1 | 1].nota ||
                  (tr[node << 1].min <= tr[node << 1 | 1].max);
}
void build(int node, int L, int R) {
  if (L == R) {
    tr[node].max = -0x3f3f3f3f;
    tr[node].min = +0x3f3f3f3f;
    tr[node].nota = 0;
    return;
  }
  int mid = (L + R) >> 1;
  build(node << 1, L, mid);
  build(node << 1 | 1, mid + 1, R);
  push_up(node);
}
void modify(int node, int L, int R, int x) {
  if (L == R) {
    tr[node].max = LS[L].empty() ? -0x3f3f3f3f : *--LS[L].end();
    tr[node].min = RS[L].empty() ? +0x3f3f3f3f : *RS[L].begin();
    tr[node].nota = tr[node].max >= tr[node].min;
    return;
  }
  int mid = (L + R) >> 1;
  if (x <= mid)
    modify(node << 1, L, mid, x);
  else
    modify(node << 1 | 1, mid + 1, R, x);
  push_up(node);
}
int main() {
  n = read(), m = read(), q = read();
  for (int i = 1; i <= n; ++i) LS[i].clear(), RS[i].clear();
  build(1, 1, n);
  while (q--) {
    int x = read(), y = read();
    if (x & 1) {
      if (RS[(x + 1) / 2].find((y + 1) / 2) == RS[(x + 1) / 2].end())
        RS[(x + 1) / 2].insert((y + 1) / 2);
      else
        RS[(x + 1) / 2].erase((y + 1) / 2);
    } else {
      if (LS[(x + 1) / 2].find((y + 1) / 2) == LS[(x + 1) / 2].end())
        LS[(x + 1) / 2].insert((y + 1) / 2);
      else
        LS[(x + 1) / 2].erase((y + 1) / 2);
    }
    modify(1, 1, n, (x + 1) / 2);
    std::puts(tr[1].nota ? "NO" : "YES");
  }
  return 0;
}
}  // namespace contest
int main() {
  contest::main();
  return 0;
}
