#include <bits/stdc++.h>
#define rep(i,n) for (int i=0; i<(n); ++i)
using namespace std;
using ll=long long;
int main(){
    int n,m,k;
    cin>>n>>m>>k;
    string op;
    cin>>op;
    vector<int>a(n);
    vector<int>b(m);
    ll c[n][m];
    ll sum=0;
    rep(i,m){
        cin>>b[i];
    }
    rep(i,n){
        cin>>a[i];
    }
    rep(i,n){
        rep(j,m){
            if(op=="+"){
                c[i][j]=(ll)a[i]+b[j];
            }
            else{
                c[i][j]=(ll)a[i]*b[j];
            }
        }
    }
    rep(i,n){
        rep(j,m){
            sum+=c[i][j];
        }
    }
    cout<<sum%k<<endl;
}