#include <stdio.h>
#include <string.h>
#include <stdlib.h>

int main(int ac, char *av[]) {
	size_t len;
	char *s, *t;

	s = av[1];

	len = strlen(s);

	/* If string is a null string, it is unspecified whether the resulting
	 * string is '.' or a null string. In either case, skip steps 2 through
	 * 6.
	 */
	if (len == 0) {
		printf("\n");
		exit(0);
	}

	/* 
	 * If string consists entirely of <slash> characters, string shall be
	 * set to a single <slash> character. In this case, skip steps 4 to 6.
	 */
	while (*s == '/') {
		s++;
		len--;
	}

	if (*s == 0) {
		printf("/\n");
		exit(0);
	}

	/* If there are any trailing <slash> characters in string, they shall
	 * be removed. */
	for (t = s+len-1; t > s; t--) {
		if (*t != '/') {
			break;
		}
		*t = 0;
		len--;
	}

	/* If there are any <slash> characters remaining in string, the prefix
	 * of string up to and including the last <slash> character in string
	 * shall be removed. */
	for (t=s+len-1; t > s; t--) {
		if (*t == '/') {
			s = t+1;
			break;
		}
	}

	len = strlen(s);
	/* If the suffix operand is present, is not identical to the characters
	 * remaining in string, and is identical to a suffix of the characters
	 * remaining in string, the suffix suffix shall be removed from string.
	 * Otherwise, string is not modified by this step. It shall not be
	 * considered an error if suffix is not found in string.
	 */
	if (ac > 2) {
		size_t suflen;
		suflen = strlen(av[2]);
		if (suflen <= len && !strcmp(av[2], s+len-suflen)) {
			len -= suflen;
			*(s+len) = 0;
		}
	}

	printf("%s\n", s);
	return 0;
}