#include <bits/stdc++.h>
int main() {
  int n, d, t, x, y, z, m;
  scanf("%d %d %d", &n, &d, &m);
  z = n - d;
  while (m--) {
    scanf("%d %d", &x, &y);
    if (x > n || y > n) {
      printf("NO\n");
    } else {
      if (y >= abs(x - d) && y <= n - (abs(z - x))) {
        printf("YES\n");
      } else {
        printf("NO\n");
      }
    }
  }
  return 0;
}
