/*
Author		: George Leonidas Coulouris
Description	: manfilt - unix man page filter
Last modified	: 13 Mar 94
*/

#include <stdio.h>

char
	ver[] = "$VER: manfilt 1.1";

int main ()
{
char
	c,
	d;

while ((c = getchar() ) != EOF)
	switch (c)
		{
		case '_':
			d = getchar();
			if ((d != '\b') && (d != EOF))
				{
				putchar('_');
				putchar(d);
				}
			break;

		case '\b':
			getchar();
			break;

		default:
			putchar(c);
		}
return 0;
}