#define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const double pi = 3.14159265359879323846264338327950288419;
const int INF = 2147483647;
using p = pair<int, int>;

int main() {
    ll n, m, p, q;
    cin >> n >> m >> p >> q;
    for (int i = 0; i < q; i++) {
        ll x, f;
        cin >> x >> f;
        x %= p;
        ll ans = 0;
        for (ll j = 1; j <= m; j++) {
            ll tmp = j % p;
            if (x * tmp % p == f) { ans++; }
        }
        cout << ans << endl;
    }
    return 0;
}