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BSD 4.2

#ifndef lint
static char sccsid[] = "@(#)comp.c	4.1 12/24/82";
#endif

#include <stdio.h>
#define MAX ' '

char new[MAX], old[MAX];

main ()
{
	register int i, j;
	old[0] = '\0';
	while (fgets(&new[0], MAX, stdin) != NULL) {
		for (i=0; i<MAX && old[i]==new[i]; i++);
		if (i >= MAX) {
			fprintf(stderr, "long word\n");
			exit(1);
		}
		putc(i, stdout);
		for (j=0; (old[j]=new[j]) != '\n'; j++);
		old[j] = '\0';
		fputs(&old[i], stdout);
	}
}

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