#include <bits/stdc++.h>
using namespace std;
int n, d;
int main() {
  cin >> n >> d;
  int m;
  cin >> m;
  for (int i = 1; i <= m; i++) {
    int x, y;
    cin >> x >> y;
    puts((d <= x + y && x + y <= 2 * n - d && -d <= x - y && x - y <= d)
             ? "YES"
             : "NO");
  }
}
