#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
using mint = modint998244353;
const ll INF=9e18;

ll ruijo(ll kazu, ll jo, ll P){
    bitset<24>bit(jo);
    ll goukei=1;
    ll ima=kazu;
    for (ll a = 0; a < 24; a++){
        if(bit.test(a)){
            goukei*=ima;
            goukei%=P;
        }
        ima*=ima;
        ima%=P;

    }
    return goukei;

}

int main() {
    ll N,P,Q;
    cin>>N>>P>>Q;
    vector<ll> A (N);
    for (ll a = 0; a < N; a++){
        cin>>A[a];
    }
    sort(A.begin(),A.end());
    vector<ll> ten (N);
    vector<ll> nine (N);
    vector<ll> seven (N);
    vector<ll> five (N);
    for (ll a = 0; a < N; a++){
        ten[a]=ruijo(10,A[a],P);
    }
    for (ll a = 0; a < N; a++){
        nine[a]=ruijo(9,A[a],P);
    }
    for (ll a = 0; a < N; a++){
        seven[a]=ruijo(7,A[a],P);
    }
    for (ll a = 0; a < N; a++){
        five[a]=ruijo(5,A[a],P);
    }
    ll kotae=0;
    for (ll a = 0; a < N-3; a++){
        for (ll b = a+1; b < N-2; b++){
            for (ll c = b+1; c < N-1; c++){
                for (ll d = c+1; d < N; d++){
                    //cout<<A[a]<<A[b]<<A[c]<<A[d]<<endl;
                    ll nya=ten[a];
                    //cout<<nya<<endl;
                    nya%=P;
                    nya+=nine[b];
                    nya%=P;
                    nya+=seven[c];
                    nya%=P;
                    nya+=five[d];
                    nya%=P;
                    if(nya==Q){
                        kotae++;
                    }
                }
            }
        }
    }
    cout<<kotae;
}