#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[1024];	/* input buffer */
	char *l;		/* pointer into input buffer */
	int c;			/* input character */

	do{
		/*
		 * load up to max-1 chars into the buffer buf
		 */
		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 && c != EOF)
			printf("%3d %s", l - line, line);

	} while (c != EOF);
}