#include <stdio.h>

int main (void) {
	int a = 0x87654321;

	printf("Ans A: 0x%.8x\n", (a & 0xff));
	printf("Ans B: 0x%.8x\n", ((~a) & ((~0) & ~0xff)) | (a & 0xff));
	printf("Ans B2: 0x%.8x\n", ((~0xff) & (~a)) |(a & 0xff));
	printf("Ans C: 0x%.8x\n", (a | 0xff));

	return 0;
}