#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>

main(int argc, char **argv)
{
	int		s;
	unsigned char	buf[8192];
	int		len, i,j;
	unsigned int	addr = 0;

	while ((len=read(STDIN_FILENO, buf, sizeof(buf))) > 0)
	{
		for (i=0; i<len; i+=16)
		{
			printf("%08x  ", addr);
			addr += 16;
			for (j=0; j<16; j++)
			{
				if ((i+j) < len)
					printf("%02x ", buf[i+j]);
				else
					printf("   ");
				if (j==7)
					printf(" ");
			}
			printf("  ");
			for (j=0; (j<16) && ((i+j) < len); j++)
			{
				if (isprint(buf[i+j]))
					printf("%c", buf[i+j]);
				else
					printf(".");
				if (j==7)
					printf(" ");
			}
		printf("\n");
		}
	}
}