#include <iostream>

using namespace std;

class BigInt{
private:
    int *p,nr_cif;
public:
    //BigInt(char *s);
    BigInt();
    BigInt(int x);
    friend ostream & operator <<(ostream&os,BigInt &r);
};

BigInt::BigInt()
{
    nr_cif=0;
    p=NULL;
}
BigInt::BigInt(int x)
{
    int i=1,uc,aux,nr=0;
    aux=x;
    do
    {
        aux/=10;
        nr++;
    }while(aux);

    p=new int[nr];
    aux=x;
     while(aux)
    {
        uc=aux%10;
        aux/=10;
        p[i++]=uc;
    }
    nr_cif=nr;
}

ostream & operator <<(ostream & os,BigInt & r)
{
    for(int i=r.nr_cif;i>=1;i--)
        cout<<r.p[i];
    return os;
}

int main()
{
    int x;
    BigInt w(56);
    cout<<w;
    return 0;
}