#include<stdio.h>
struct sum
{
    double x;
      double y;

};
int main()
{
    int i;
    double d,sum1=0,sum2=0;
    struct  sum p[2];
    scanf("%lf ",&p[0].x);
    scanf("%lf ",&p[0].y);
    scanf("%lf ",&p[1].x);
    scanf("%lf ",&p[1].y);
    sum1 =p[0].x+p[1].x;
    printf("%lf ",sum1);
    sum2=p[0].y+p[1].y;
     printf("%lf ",sum2);














}