#include<stdio.h>

typedef struct complex

{

float r,i;

}complex;

void add(complex x1,complex x2);

int main()

{

struct complex c1,c2;

scanf("%f%f",&c1.r,&c1.i);

scanf("%f%f",&c2.r,&c2.i);

add(c1,c2);

return 0;

}

void add(complex x1,complex x2)

{

float res1,res2;

res1=x1.r+x2.r;

res2=x1.i+x2.i;

if(res2<0)

printf("Sum = (%.2f - i%.2f)",res1,-res2);

else

printf("Sum = (%.2f + i%.2f)",res1,res2);

}