#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
template<class T> void check_min(T &a, const T &b){ a = (a < b) ? a : b; }
template<class T> void check_max(T &a, const T &b){ a = (a > b) ? a : b; }
#define all(x) (x).begin(), (x).end()

ll p, q;

ll fast_pow(ll base, ll exp){
    if(!exp) return 1ll;
    if(exp & 1) return base * fast_pow(base, exp - 1) % p;
    ll t = fast_pow(base, exp >> 1);
    return t * t % p;
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(NULL);

    cin >> p >> q;
    while(q--){
        ll a, b, c, d;
        cin >> a >> b >> c >> d;

        ll sum = (a + b) % p;
        if((c + d) % p != sum){
            cout << "-1\n";
            continue;
        }
        if(a == c){
            cout << "0\n";
            continue;
        }

        for(ll k = 1; true; ++k){
            ll new_a = (1ll << k) % p * a % p;
            ll diff = (new_a - c + p) % p;
            // cout << diff << " diff" << endl;
            diff *= fast_pow(sum, p - 2);
            diff %= p;
            // cout << diff << " c" << endl;

            if(diff < (1ll << k)){
                cout << k << "\n";
                break;
            }
        }
    }
}