poiters_stefi

#include <iostream>
#include <cmath>

using namespace std;


void update(int *a, int *b)
{
    int sum = 0;
    int difference = 0;
    sum = *a + *b;
    difference = abs(*a - *b);
    *a = sum;
    *b = difference;
}

int main()
{
    int a;
    int b;
    cin >> a >> b;
    update(&a, &b);

    cout << a << endl;
    cout << b;

    return 0;
}