// find string "xxx.y%" or "xxx%" in stdin and output "xxx"

#include <stdio.h>

#define N 5

main (int argc, char **argv)
{
	char c[N+1];
	int i;
	FILE *f;

	f = fopen ("/dev/stdout", "w");

	for (i=0; i < N; i++)
		c[i] = ' ';

	for (;;) {
		if (read(0, &c[0], 1) != 1)
			break;
			
		if (c[0] == '%') {
			int j = 0;
			for (i=1; i<=N && c[i]!=' '; i++)
				if (c[i]=='.')
					j = i;
			for (i--; i>j; i--)
				fputc (c[i], f);
			fputc ('\n', f);
			fflush (f);
		}

		if ((c[0] < '0'  ||  c[0] > '9') && c[0] != '.')
			c[0] = ' ';

		for (i=N; i>0; i--)
			c[i] = c[i-1];
	}

	fclose (f);

	return 0;
}