#include <stdio.h>
#define		BUFSIZE		1024	/* maximum input line length */
/*
 * echo the input back to the output, but print the number
 * of characters read at the beginning of the line
 * this uses pointers
 */
void main(void)
{
	char line[BUFSIZE];				/* input buffer */
	char *l;				/* pointer into input buffer */
	int c;				/* input character */
	do{
		/* load up to BUFSIZE-1 chars into the buffer */
		l = &line[0];
		while(l < &line[BUFSIZE-1] &&
				(c = getchar()) != EOF && c != '\n')
			*l++ = c;
		/* end the string with a newline and return success */
		if (c == '\n')
			*l++ = c;
		/* tack on the string terminator */
		*l = '\0';
		/* print it out */
		if (l != line)
			printf("%3d %s", l - line, line);
	} while (c != EOF);
	/*
	 * say goodbye
	 */
	exit(0);
}