#include <fstream>

using namespace std;

ifstream in("podm.in");
ofstream out("podm.out");

long long int mat[1000][1000];
int n;
int lung_sir;


int main()
{
    for (int i = 0; i <= n; ++ i){
      in >> v[i];
    }

    for (lung_sir = 2; lung_sir <= n; ++ lung_sir){
      for (start = 1; start < lung_sir / 2; ++ start){

      }
    }

    return 0;
}