var
  x,y : array [1..100] of real;
  x1,x2,x3,x4,y1,y2,y3,y4 : longint;
  i,n,sumx,sumy : longint;
begin
  for i:=1 to 4 do
    readln(x[i], y[i]);
  sumx:=0;
  for i:=1 to 4 do
    sumx[i]:=x1+x3;
  for i:=1 to 4 do
  sumy:=0;
  for i:=1 to 4 do
    sumy[i]:=y2+y4;
  writeln(sumx[i]:0:3,' ',sumy[i]:0:3);
end.