#include<bits/stdc++.h>
using namespace std;

#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define ALL(v) v.begin(),v.end()
typedef long long ll;
template <class T> using V=vector<T>;
template <class T> using VV=V<V<T>>; //B(n,V<int>(n))
 
int main(){
  ios::sync_with_stdio(false);
  std::cin.tie(nullptr);
  
  ll n,p,q;
  cin>>n>>p>>q;
  V<ll> A(n);
  rep(i,n) cin>>A[i];
  sort(ALL(A));
  
  VV<ll> B(4,V<ll>(2002002));
  rep(i,4) B[i][0]=1;
  rep(j,2002000) B[0][j+1]=B[0][j]*10%p;
  rep(j,2002000) B[1][j+1]=B[1][j]*9%p;
  rep(j,2002000) B[2][j+1]=B[2][j]*7%p;
  rep(j,2002000) B[3][j+1]=B[3][j]*5%p;
  
  VV<ll> C(n+1,V<ll>(100100));
  for(int i=n-1;i>=0;i--){
    for(int j=0;j<100100;j++){
      C[i][j]=C[i+1][j];
    }
    C[i][B[3][A[i]]]++;
  }
  
  ll ans=0;
  for(int a=0;a<n-1;a++){
    for(int b=a+1;b<n-1;b++){
      for(int c=b+1;c<n-1;c++){
        ll tmp=(B[0][A[a]]+B[1][A[b]]+B[2][A[c]])%p;
        ans+=C[c+1][(q-tmp+p)%p];
      }
    }
  }
  cout<<ans<<endl;
  
    
  return 0;
}