//****************************************************** 
//* ? ? ?   ?1134 ??                             *
//* ? ?      ?? ? ?                              *
//* ? ? ? ??2010 ? 11 ? 4 ?                    * 
//* ? ? ? ???????????????            *
//* ? ?      ?1000010439                            *
//******************************************************
int main()                               //??? 
{
    int a[17][1000],i,j,k,s[1000] = {0}; //????????????????? 
    int sum[1000] = {0},g = 0,n;         //?????????? 
    for(i = 0,k = 0;i <= 1000;i++,k++)   //???????? 
    {
        for(j = 0;j <= 16;j++,s[i]++)
        {
            cin >> a[j][i];
            if(a[j][i] == 0)             //??0????????????? 
            break;
            else if(a[j][i] == -1)       //??-1????? 
            {
                 g = 1;
                 break;
            }
        }
        if(g == 1)
        break;
    }
    for(i = 0;i <= k - 1;i++)             //???????? 
    {
        for(j = s[i];j >= 0;j--)
        {
            for(n = 0;n < j;n++)
            {
                if(a[n][i] < a[j][i])
                {
                   if(a[j][i] == 2 * a[n][i])
                   sum[i]++;
                }
                else
                {
                   if(a[n][i] == 2 * a[j][i])
                   sum[i]++;
                }
            }
        }
        cout << sum[i] << endl;             //????????? 
    }
    return 0;
}
