void update(int* a,int* b) {
    int temp = *a;
    *a = *a + *b; 
    *b = abs(temp - *b);      
}
int main() {
    int a, b;
    int* pa = &a;
    int* pb = &b;
    
    scanf("%d %d", &a, &b);
    update(pa, pb);
    printf("%d\n%d", a, b);

    return 0;
}