#include <stdio.h>
void update(int *a,int *b) {
// Complete this function
int sum,diff;
sum = *a+*b;
diff = abs(*a-*b);
*a = sum;
*b = diff;
}
int main() { int a, b; int *pa = &a, *pb = &b;
scanf("%d %d", &a, &b);
update(pa, pb);
printf("%d\n%d", a, b);
return 0;
}