#include <algorithm>
#include <cassert>
#include <cmath>
#include <cstdio>
#include <deque>
#include <iomanip>
#include <iostream>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
#include <cfloat>
#include <complex>

using std::cerr;
using std::cin;
using std::cout;
using std::endl;


//Copy from this line!

typedef std::complex<double> Complex;

std::vector<Complex> DFT(std::vector<Complex> func, int size, int sign){
  if(size==1) return func;

  std::vector<Complex> result(size);
  std::vector<Complex> func_a(size/2);
  std::vector<Complex> func_b(size/2);
  for(int i=0;i<size/2;i++){
    func_a[i]=func[2*i];
    func_b[i]=func[2*i+1];
  }
  func_a=DFT(func_a,size/2,sign);
  func_b=DFT(func_b,size/2,sign);

  Complex zeta(cos(2.0*M_PI/size),sin(2.0*M_PI/size)*sign);
  Complex zeta_pow(1);
  for(int i=0;i<size;i++){
    result[i]=func_a[i%(size/2)]+zeta_pow*func_b[i%(size/2)];
    zeta_pow*=zeta;
  }
  return result;
}

std::vector<Complex> InvDFT(std::vector<Complex> func, int size){
  std::vector<Complex> result=DFT(func, size, -1);
  for(int i=0;i<size;i++){
    result[i]/=size;
  }
  return result;
}

std::vector<Complex> MultyplyFunction(std::vector<Complex> func_f, std::vector<Complex> func_g){
  int min_size=func_f.size()+func_g.size()+1;
  int size=1;
  while(size<min_size){
    size*=2;
  }
  func_f.resize(size);
  func_g.resize(size);
  func_f=DFT(func_f,size,1);
  func_g=DFT(func_g,size,1);
  std::vector<Complex> func(size);
  for(int i=0;i<size;i++){
    func[i]=func_f[i]*func_g[i];
  }
  return InvDFT(func,size);


}


int main(void){
  cout << std::fixed << std::setprecision(16);
  cin.tie(0);
  std::ios::sync_with_stdio(false);

  int n;
  cin>>n;
  std::vector<std::complex<double>> a(n+1),b(n+1);
  for(int i=0;i<=n;i++){
    int x;
    cin>>x;
    a[i]=std::complex<double>(x);
  }
  for(int i=0;i<=n;i++){
    int x;
    cin>>x;
    b[i]=std::complex<double>(x);
  }
  std::vector<std::complex<double>> c=MultyplyFunction(a,b);

  int64_t result=0;
  const int64_t MOD=1000000007;
  for(int i=0;i<=n;i++){
    result+=lround(c[i].real());
    result%=MOD;
  }
  cout<<result<<endl;



  return 0;
}