#include <bits/stdc++.h>
#define rep(i, a) for (int i = (int)0; i < (int)a; ++i)
#define rrep(i, a) for (int i = (int)a - 1; i >= 0; --i)
#define REP(i, a, b) for (int i = (int)a; i < (int)b; ++i)
#define RREP(i, a, b) for (int i = (int)a - 1; i >= b; --i)
#define pb push_back
#define eb emplace_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define popcount __builtin_popcount
using ll = long long;
constexpr ll mod = 1e9 + 7;
constexpr ll INF = 1LL << 60;

template <class T>
inline bool chmin(T &a, T b)
{
	if (a > b)
	{
		a = b;
		return true;
	}
	return false;
}
template <class T>
inline bool chmax(T &a, T b)
{
	if (a < b)
	{
		a = b;
		return true;
	}
	return false;
}

ll gcd(ll n, ll m)
{
	ll tmp;
	while (m != 0)
	{
		tmp = n % m;
		n = m;
		m = tmp;
	}
	return n;
}

ll lcm(ll n, ll m)
{
	return abs(n) / gcd(n, m) * abs(m); //gl=xy
}

using namespace std;

void solve()
{
	ll n,m,k;
  cin>>n>>m>>k;
  char op;
  cin>>op;
  vector<ll>b(m),a(n);
  rep(i,m)cin>>b[i];
  rep(i,n)cin>>a[i];
  ll sum=0,sum2=0;
  if(op=='+'){
    rep(i,n)sum+=a[i];
    rep(j,m)sum2+=b[j];
		sum%=k;
		sum2%=k;
    sum*=m;
    sum2*=n;
    sum+=sum2;
    cout<<sum%k<<"\n";
  }
  else {
    rep(i,n)sum+=a[i];
    rep(j,m)sum2+=b[j];
    sum%=k;sum2%=k;
    cout<<(sum*sum2)%k<<"\n";
  }
}

int main()
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout << fixed << setprecision(15);
	solve();
	return 0;
}