#include <iostream>

using namespace std;

int estePalindrom(int x){
    int a, invers=0;
    a=x;
    while(x)
    {
        invers=invers*10 + x%10;
    }
    if(invers==a)
        return 1;
    else
        return 0;
}

void copiezPalindrom(int a[],int b[],int n)
{
    int i, j;
    j=1;
    for(i=1;i<=n;i++)
    {
        if(estePalindrom(a[i])== 1)
            b[j++]=a[i];
    }
}

int main()
{
    cout << "Hello world!" << endl;
    return 0;
}