3 3 20
4 4
2 4
2 2
2 2
2 2
5 5
2 2
2 2
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5 5
3 5
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2 2
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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
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1 1
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2 2
1 1
1 1
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 1 10 10
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6 6
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12 8
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1 3
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2 6
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6 2
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 10 10 10
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 1 1 20
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4 2
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2 6
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3 3
2 6
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1 5
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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
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 10 10 10
9 17
9 13
8 10
12 2
18 14
18 6
10 6
13 19
2 12
10 8
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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
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3 15
6 6
7 17
4 16
11 9
2 6
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9 19
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3 15
 1 2 1
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1 7
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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 = 8e5 + 5;
long long n, m, q;
int ltree[maxn], rtree[maxn], f[maxn];
set<int> lset[maxn], rset[maxn];
void pushup(int x) {
  ltree[x] = min(ltree[x << 1], ltree[(x << 1) | 1]);
  rtree[x] = max(rtree[x << 1], rtree[(x << 1) | 1]);
  f[x] = f[x << 1] | f[(x << 1) | 1] | (ltree[x << 1] <= rtree[(x << 1) | 1]);
}
void build(int l, int r, int x) {
  if (l == r) {
    ltree[x] = m + 1;
    rtree[x] = 0;
    f[x] = 0;
    return;
  }
  int mid = (l + r) >> 1;
  build(l, mid, x << 1);
  build(mid + 1, r, (x << 1) | 1);
  pushup(x);
}
void update(int x, int l, int r, int p) {
  if (l == r) {
    if (!lset[p].empty())
      ltree[x] = *(lset[p].begin());
    else
      ltree[x] = m + 1;
    if (!rset[p].empty())
      rtree[x] = *(rset[p].rbegin());
    else
      rtree[x] = 0;
    f[x] = ltree[x] <= rtree[x];
    return;
  }
  int mid = (l + r) >> 1;
  if (p <= mid) {
    update(x << 1, l, mid, p);
  } else {
    update((x << 1) | 1, mid + 1, r, p);
  }
  pushup(x);
}
int main() {
  scanf("%lld%lld%lld", &n, &m, &q);
  build(1, n, 1);
  int x, y;
  for (int i = 0; i < q; i++) {
    scanf("%d%d", &x, &y);
    x++;
    y++;
    if ((x & 1) == 0) {
      lset[x >> 1].insert(y >> 1);
    } else {
      rset[x >> 1].insert(y >> 1);
    }
    update(1, 1, n, x >> 1);
    if (f[1]) {
      printf("NO\n");
    } else {
      printf("YES\n");
    }
  }
  return 0;
}
