C Berechnung und Ausgabe der Wertebereiche

#include <stdio.h>

int main()

{
  short int x = 1;
  long int y = 1;
  unsigned short int a = 1;
  unsigned long int b = 1;
  
  while(x>0){  /* Schleife die solange +1 addiert, bis der Wert unter 0 kippt */
             x=x+1;
             }
             
             printf("yoho %d\n",x);
             x=x-1;
             printf("yoho %d\n",x);
             
    while(y>0){
             y=y+1;
             }
             
             printf("yoho %d\n",y);
             y=y-1;
             printf("yoho %d\n",y);
     
    while(a>0){
             a=a+1;
             }
             
             printf("yoho %d\n",a);
             a=a-1;
             printf("yoho %d\n",a);
    
    while(b>0){ /* Das Problemkind. */
             b=b+1;
             }
             
             printf("yoho %d\n",b);
             b=b-1;
             printf("yoho %d\n",b);
             
  system("PAUSE");
  
  return 0;

}

    while(b>0){ /* Das Problemkind. */
             b=b+1;
             }
             
             printf("yoho %lu\n",b);
             b=b-1;
             printf("yoho %lu\n",b);
}