#include <iostream>

using namespace std;
{


int main()
int n, V[50], i, s=0 ;
cout <<"n="; cin>>n;
for (i=1; i<=n; i++)

    {cout <<"V[" <<i<<"]=";
    cin>> V[i];
    if(V[i]%2==1)
        s=s+V[i];}
    cout s;
    return 0;
}