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#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC target("sse4")
using namespace std;
constexpr int INF = 1e9 + 9;
int n, m, q;
struct SegTree {
  int H;
  vector<int> tree;
  bool ismin;
  SegTree(int len, int initial, bool _ismin) {
    H = 1;
    while (H < len) {
      H *= 2;
    }
    tree = vector<int>(H * 2, initial);
    ismin = _ismin;
  }
  int minquery(int lo, int hi) {
    int L = H + lo;
    int R = H + hi;
    int res = min(tree[L], tree[R]);
    while (L + 1 < R) {
      res = min(res, tree[L]);
      res = min(res, tree[R]);
      L /= 2;
      R /= 2;
    }
    return res;
  }
  int maxquery(int lo, int hi) {
    int L = H + lo;
    int R = H + hi;
    int res = max(tree[L], tree[R]);
    while (L + 1 < R) {
      res = max(res, tree[L]);
      res = max(res, tree[R]);
      L /= 2;
      R /= 2;
    }
    return res;
  }
  void update(int idx, int value) {
    tree[H + idx] = value;
    for (int i = (H + idx) / 2; i >= 1; i /= 2) {
      tree[i] = ismin ? min(tree[i * 2], tree[i * 2 + 1])
                      : max(tree[i * 2], tree[i * 2 + 1]);
    }
  }
};
void solve(int test, istream& in, ostream& out) {
  in >> n >> m >> q;
  SegTree lower(2 * n + 2, INF, true);
  SegTree upper(2 * n + 2, -INF, false);
  bool done = false;
  for (int _ = 0; _ < q; ++_) {
    int i, j;
    in >> i >> j;
    if (done) {
      out << "NO" << endl;
      continue;
    }
    string ans;
    if (i % 2 == 0) {
      if (lower.minquery(1, i) <= j) {
        ans = "NO";
      } else {
        ans = "YES";
      }
      if (upper.maxquery(i, i) < j) upper.update(i, j);
    } else {
      if (upper.maxquery(i, 2 * n) >= j) {
        ans = "NO";
      } else {
        ans = "YES";
      }
      if (lower.minquery(i, i) > j) lower.update(i, j);
    }
    out << ans << endl;
    if (ans == "NO") done = true;
  }
}
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  istream& in(std::cin);
  ostream& out(std::cout);
  solve(1, in, out);
  return 0;
}
