#include <stdio.h> 

int main(void) { 
  unsigned char a[] ={ 0xDE, 0xFE, 0xFD, 0xFE };
  printf("%u.%u.%u.%u\n", (unsigned int)(a[0]),
                          (unsigned int)(a[1]),
                          (unsigned int)(a[2]),
                          (unsigned int)(a[3])
        ); 
  return 0; 
}