C :

#include<stdio.h>
int main()
{
	int head, foot;
	int x, y;
	scanf("%d%d", &head, &foot);
	x = (4 * head - foot) / 2;
	y = (foot - 2 * head) / 2;
	printf("%d %d\n", x, y);
	return 0;
}

C++ :

#include <cstdio>
//#include <cstdlib>

int main(){
  int a, b, n, m;
  scanf("%d%d", &n, &m);
  a = (4*n-m)/2;
  b = n-a;
  printf("%d %d\n", a, b);
  //system("pause");
  return 0;
}

Pascal :

var i,j,k,m,n:longint;
begin
read(n,k);
m:=n*4;
i:=(m-k) div 2;
j:=n-i;
write(i,' ',j);
end.