/* -*- coding: utf-8 -*-
 *
 * 3260.cc:  No.3260 蟯ｩ莠輔せ繧ｿ繝ｼ繧ｰ繝ｩ繝・- yukicoder
 */

#include<cstdio>
#include<algorithm>
#include<utility>

using namespace std;

/* constant */

/* typedef */

using ll = long long;
using pii = pair<int,int>;

/* global variables */

/* subroutines */

pii p2ij(ll p, int y) {
  if (p == 0) return {0, 0};
  return {(p - 1) / y, (p - 1) % y + 1};
}

/* main */

int main() {
  int x, y, n;
  scanf("%d%d%d", &x, &y, &n);

  while (n--) {
    ll u, v;
    scanf("%lld%lld", &u, &v);
    if (u > v) swap(u, v);

    auto [ui, uj] = p2ij(u, y);
    auto [vi, vj] = p2ij(v, y);

    printf("%d\n", (ui == vi) ? vj - uj : uj + vj);
  }

  return 0;
}