/* This progran is a replaced ment for the following script, which
   does not work on Suns as well as it does on other UNIXen
sed 's/\&/\&/g
s/\</\&lt;/g
s/\>/\&gt;/g
s/\"/\&quot;/g'
*/
#include <stdio.h>
main()
{
	int ch;
	while( (ch=getchar())!=EOF){
		switch(ch){
		case '&': printf("&amp;"); break;
		case '<': printf("&lt;"); break;
		case '>': printf("&gt;"); break;
		case '"': printf("&quot;"); break;
		default: putchar(ch); break;
		}
	}
	return 0;
}