Atestat 1

#include<iostream>
#include<fstream>
using namespace std;

void S1(int &a,int &b)
{
    b=b*10+a%10;
    a=a/10;
}

int S2(int k)
{
    int c=0, p=1;
    while(k>0)
    {
        if(k%2==1)
        {
            c=c+(k%10)*p;
            p=p*10;
        }
        k=k/10;
    }
    return c;
}


int main()
{
    ifstream f("numere.in");
    int n,copie,x;
    f>>n;
    copie=n;
    x=0;

    while(copie>0)
        S1(copie,x);

    if(S2(x)==n)cout<<"DA";
    else cout<<"NU";
}