Why can't it print out the character encoded in Shift-JIS?

Question

#include <stdio.h>
#include <stdlib.h>
#include <locale.h>

int main (void)
{
    setlocale(LC_ALL, "ja_JP.Shift_JIS");
    char Str[3] = {0x82,0xCC,'\0'};
    printf ("(%ls)\n", Str);        // --> A
    wprintf (L"(%ls) \n", Str);     // --> B
    system ("pause");
}

Note : の = (Shift-JIS) 0x82 0xCC

It printed out so weird: (JUST THREE CHARACTERS and \n was totally ignored!!)

(()

Why can neither A nor B print out the character encoded in Shift-JIS?