#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
#define rep(i,n) for(int i=0;i<(int)(n);i++)
template<class T> inline bool chmax(T&a,T b){if(a<b){a=b;return 1;}return 0;}
template<class T> inline bool chmin(T&a,T b){if(a>b){a=b;return 1;}return 0;}
using ll = long long;

ll n,m,k,a,b,t;
char op;

int main () {
    cin.tie(0); ios::sync_with_stdio(false); 

    cin >> n >> m >> k >> op;
    rep(i,m) cin >> t, b=(b+t)%k;
    rep(i,n) cin >> t, a=(a+t)%k;

    cout << (op=='+' ? (a*m+b*n)%k : (a*b)%k) << '\n';
}