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#include <iostream>
#include <iomanip>
using namespace std;
int main(){
double a,b,c,d;
char op;
cin >> a >> b >> c >> d >> op;
double real, imag;
if(op=='+'){
real = a + c;
imag = b + d;
}
else if(op=='-'){
real = a - c;
imag = b - d;
}
else if(op=='*'){
real = a*c - b*d;
imag = a*d + b*c;
}
cout << fixed << setprecision(1) << real << " " << imag;
return 0;
}
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