#include <iostream>
#include <string>

using namespace std;

bool Vowel (string, int);
bool HasVowel (string, int);

int main ()
{
	string		word;
	string		syl;
	int			start;
	int			end;
	int			last;
	int			spot;
	int			trial;
	bool		done = false;

	cout << "Enter: ";
	do {
		cin >> word;
		spot = word.find('.');
		if (spot > 0)
		{
			word = word.substr(0,spot);
			done = true;
		}
		start = end = 0;
		last = word.size() - 1;
		while (end <= last)
		{
			if (Vowel(word, start))
			{
				end++;
				while (end <= last && Vowel(word, end))
					end++;
				if (end > last)
					syl = word.substr(start, end-start);   // v*
				else 
				{
					syl = word.substr(start, end-start+1);	// v*c
					trial = end + 1;
					while (trial <= last && !Vowel(word, trial))
						trial++;
					if (trial > last)
					{
						syl = word.substr(start, trial-start);	// v*c*#
						end = trial;
					}
				}
				cout << syl;
			}
			else
			{
				end++;
				while (end <= last && !Vowel(word, end))
					end++;
				while (end <= last && Vowel(word, end))
					end++;
				trial = end;
				if (end == last)
					trial = end + 1;		// c*v*cc#   or c*v*cv#
				else if (end < last && !Vowel(word, end+1))
					trial = end + 1;		// c*v*c
				syl = word.substr(start, trial-start);	// otherwise c*v*c
				end = trial - 1;
				cout << syl;
			}
			end = start = end + 1;
			if (end <= last && HasVowel(word, end))
				cout << '-';
			else if (end <= last)
			{
				cout << word.substr(end, 100);		// attach rest
				end = last + 1;
			}
		}
		cout << endl;
	}while (!done);
	return 0;
}

bool Vowel (string  hold, int pos)
{
	char	let;

	if (hold[pos] == 'y' && pos > 0)
		return true;
	let = hold[pos];
	if (let == 'a' || let == 'e' || let == 'i' || let == 'o' || let == 'u')
		return true;
	else
		return false;
}

bool HasVowel (string hold, int pos)
{
	int		limit = hold.size();

	for (; pos < limit; pos++)
		if (Vowel(hold, pos))
			return true;
	return false;
}