C不同变量类型存储大小引发的BUG

#include"stdio.h" 
typedef  signed     char          int8;
typedef  unsigned   char          uint8;
typedef  signed     short int     int16;
typedef  unsigned   short int     uint16;
typedef  signed     long  int     int32 ;
typedef  unsigned   long  int     uint32;
int main()
{
	int8  num8    =0;
	int16 num16    =0;
    int32 num32    =0;
    
    int32 numb32    =0;  
	int16 numb16    =0;
  	int8  numb8    =0;
	printf("input a number16 :
");
	scanf("%d",&num16);
	printf("input a number8: 
");
	scanf("%d",&num8);
	printf("input a number32: 
");
	scanf("%d",&num32);
	printf("num16: %d 	 num8: %d	 num32: %d 
",num16,num8,num32);
	printf("------------------------------------------------------
");	
	printf("input a number16 :
");
	scanf("%d",&numb16);
	printf("input a number8: 
");
	scanf("%d",&numb8);
	printf("input a number32: 
");
	scanf("%d",&numb32);
	printf("numb16: %d 	 numb8: %d	 numb32: %d 
",numb16,numb8,numb32);	
	
    getchar();
	printf("a");	
	
}