#include <stdio.h>

struct t { int b; int a; } ;
struct u { struct t d; struct t c; } ;
struct u x[2] = {
  { { 3, 1 }, { 4, 1 } }, { { 5, 9 }, { 2, 6 } }
} ;

int dot(struct t *p)
{
  return p->a - p->b;
}

int dou(struct u *q)
{ 
  return dot(&q->c) + 2 * dot(&q->d);
}

int main(void)
{
  printf("%d %d\n",dou(x + 1),dou(x));
  return 0;
}