#include<bits/stdc++.h>
using namespace std;

float a, b, c, d;
char ch;

int main()
{
	cin >> a >> b >> c >> d >> ch;
	
	if(ch == '+')
		printf("%.1f %.1f", a + c, b + d);
	else
		printf("%.1f %.1f", a * c - b * d, a * d + c * b);
	
    return 0;
}