int main() {
	char buffer[10000];

	char *temp = buffer;
	while ((*temp++ = getchar()) != EOF);

	*--temp = '\0';


	//Compiling Regex

	int error;
	PCRE2_SIZE erroroffset;

	char errormessage[100];
	pcre2_code *regex = pcre2_compile("Error", PCRE2_ZERO_TERMINATED, 0, &error, &erroroffset, NULL);
	pcre2_get_error_message(error, errormessage, 100);

	//Matching Regex Pattern

	pcre2_match_data *matches;
	int numresults = pcre2_match(regex, buffer, 30, 0, 0, matches, NULL);


	pcre2_get_error_message(numresults, errormessage, 100);
	if(numresults == PCRE2_ERROR_NOMATCH)
		return 0;



	//Getting Substrings


	for(int i=0; i < numresults; i++){
		char match[30];
		size_t *matchlen;
		pcre2_substring_copy_bynumber(matches, i, match, matchlen);
		printf("%d: %s\n", i, match);
	}


	//Program End
	pcre2_match_data_free(matches);
	pcre2_code_free(regex);
	return 0;
}