#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, d, m, i, a, b;
  cin >> n >> d >> m;
  for (i = 0; i < m; i++) {
    cin >> a >> b;
    if ((a - b + d) * (a - b - d) <= 0 &&
        (a + b - d) * (a + b + d - 2 * n) <= 0)
      cout << "YES" << endl;
    else
      cout << "NO" << endl;
  }
  return 0;
}
