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#include<iostream>
using namespace std;
int main()
{
    unsigned int n,p=0;
    unsigned int suma=0;
do
{
    cout<<"podaj n ";
    cin>>n;
}
while((n<1)||(n>1000000));
unsigned int *tab;
    tab = new unsigned int[n];

    for(int i=0;i<n;i++)
    {
        do
        {
            cout<<"podaj nominal "<<i+1<<" banknotu ";
            cin>>tab[i];
        }
        while((tab[i]<1)||(tab[i]>1000));

    }
    unsigned int *tab2;
	tab2 = new unsigned int[n];
    for(int i=0;i<n;i++)
    {
        if(tab[i]%2==1)
        {
            tab2[p]=tab[i];
            tab[i]=0;
            p++;
        }
    }

    for(int i=0;i<p;i++)
    {
        if(tab2[i]<tab2[i+1])
        swap(tab2[i],tab2[i+1]);
    }
    for(int i=0;i<n;i++)
    {
        suma+=tab[i];
    }
    if((suma==0)&&(p<2))
    cout<<"NIESTETY"<<endl;
    else
if(p%2==0)
{
    for(int i=0;i<p;i++)
    suma+=tab2[i];
}
else
{
for(int i=0;i<p-1;i++)
    suma+=tab2[i];
}
cout<<suma<<endl;
    return 0;
    }