#include <stdlib.h>
typedef int (*foo_t)(int);

int foo0(int);
int foo1(int);
int foo2(int);
int foo3(int);
int foo4(int);
int foo5(int);
int foo6(int);
int foo7(int);

extern const foo_t foos[];

const foo_t foos[] = {
  foo0,
  foo1,
  foo2,
  foo3,
  foo4,
  foo5,
  foo6,
};

int foo_dis1(int x, unsigned s)
{
  if (s<4)
    if (s<2)
      if (s<1)
	return foo0(x);
      else
	return foo1(x);
    else
      if (s<3)
	return foo2(x);
      else
	return foo3(x);
  else
    if (s<6)
      if (s<5)
	return foo4(x);
      else
	return foo5(x);
    else
      if (s<7)
	return foo6(x);
  abort();
}

int foo_dis2(int x, unsigned s)
{
  if (s<7)
    return foos[s](x);
  abort();
}

int foo_dis3(int x, unsigned s)
{
  if (s <3) {
    if (s <1)  return foo0(x);
    if (s==1) return foo1(x);
    return foo2(x);
  }
  if (s==3) return foo3(x);
  if (s <5) return foo4(x);
  if (s==5) return foo5(x);
  if (s <7) return foo6(x);
  return foo7(x);
}