void switch2( int a, int *b, int *c)
{
  switch (a) {
  case 0: 
    *b = 0;	
    *c = 0;	
	break;
  case 1: 
    *b = 1;	
    *c = 1;	
	break;
  case 2: 
    *b = 2;	
    *c = 2;	
	break;
  case 3: 
    *b = 3;	
    *c = 3;	
	break;
  }
}

int main(void) {

int b, c;

switch2( 1 , &b, &c);
return(0);
}