#include<iostream>
#include<string>
using namespace std;

void removePunctuation(string& phrase)
{
	//remove punctuation
	for(int i = 0; i < phrase.length(); i++)
	{
		if(phrase[i] == '.' ||
			phrase[i] == ',' ||
			phrase[i] == '?' ||
			phrase[i] == '!' ||
			phrase[i] == ':' ||
			phrase[i] == ';')	
		{
			phrase.replace(i,1,"");
			i--;
		}
	}
}

void main()
{
	string phrase;
	getline(cin,phrase);
	
	removePunctuation(phrase);
	int index = -1;
	int previousIndex = -1;
	int palindromeCount = 0;
	do
	{
		index = phrase.find(' ', index + 1);
		if(index != string::npos)
		{
			int wordLength = index - previousIndex;
			string word = phrase.substr(previousIndex + 1, wordLength);
			previousIndex = index;
			cout << word << endl;
			//if(isPalindrome(word))
			//{
			//	palindromeCount++;
			//}
		}
		else
		{
			//at the end of the phrase
			string word = phrase.substr(previousIndex + 1);
			cout << word << endl;
		}
	}
	while(index != string::npos);


	cout << phrase << endl;
	//removeSpaces(phrase);
}


//int main(int argc, char* argv[])
//{
//	for(int i = 1; i < argc; i++)
//	{
//		cout << argv[i] <<  " ";
//	}
//	cout << " = ";
//
//	return 0;
//}