#include<bits/stdc++.h>
using namespace std;
using Int = long long;
template<typename T1,typename T2> inline void chmin(T1 &a,T2 b){if(a>b) a=b;}
template<typename T1,typename T2> inline void chmax(T1 &a,T2 b){if(a<b) a=b;}

//INSERT ABOVE HERE
signed main(){
  Int n,m,k;
  cin>>n>>m>>k;
  char op;
  cin>>op;
  vector<Int> as(n),bs(m);
  for(Int i=0;i<m;i++) cin>>bs[i];
  for(Int i=0;i<n;i++) cin>>as[i];

  Int sa=accumulate(as.begin(),as.end(),0LL)%k;
  Int sb=accumulate(bs.begin(),bs.end(),0LL)%k;
  if(op=='+') cout<<(sa*m+sb*n)%k<<endl;
  if(op=='*') cout<<(sa*sb)%k<<endl;
  return 0;
}