#include<iostream>
#include<string>
#include<cstdio>
#include<vector>
#include<cmath>
#include<algorithm>
#include<functional>
#include<iomanip>
#include<queue>
#include<ciso646>
#include<utility>
#include<map>
#include<set>
#include<bitset>
#include<stack>
#include<cassert>
#include<random>
#include<unordered_map>
#include<numeric>
using namespace std;
using ll = long long;
const ll mod = 1000000007;
const ll INF = (1e+18) + 7;
#define rep(i,n) for(int i=0;i<n;i++)
#define Rep(i,sta,n) for(int i=sta;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define all(x) (x).begin(),(x).end()
#define stop char nyaa;cin>>nyaa;

using P = pair<int, int>;
using LP = pair<ll, ll>;


void solve() {
	int h, w; cin >> h >> w;
	ll m; cin >> m;
	char c; cin >> c;
	vector<ll> a(h), b(w);
	rep(j, w)cin >> b[j]; rep(i, h)cin >> a[i];
	if (c == '+') {
		ll ans = 0;
		rep(i, h) {
			ans += a[i] * w;
			ans %= m;
		}
		rep(j, w) {
			ans += b[j] * h;
			ans %= m;
		}
		cout << ans << endl;
	}
	else {
		ll sa = 0, sb = 0;
		rep(i, h)sa += a[i];
		rep(j, w)sb += b[j];
		sa %= m; sb %= m;
		cout << sa * sb%m << endl;
	}

}
signed main() {
	cin.tie(0);
	ios::sync_with_stdio(false);
	//int t; cin >> t;rep(i,t) solve();
	solve();
	stop
		return 0;
}