#include <iostream>
#include "string.h"

using namespace std;

class Test
{
private:
    char a, b;

public:

void setQ(char Q_a, char Q_b)
{
    a = Q_a;
    b = Q_b;
}

void Sum()
{
   strcat(a, b);
}

void getQ()
{
    cout << a << endl;
}

};

int main()
{
    char a, b;

    cin >> a, b;


    Test Obj;

    Obj.setQ(a, b);
    Obj.Sum();
    Obj.getQ();

    return 0;
}