//****************************************************************************************
//*  ?????????? 																 *
//*  ??????????????????????????????????????        * 
//*  ???????					   													 *
//*  ???2010?12?8?															     *
//****************************************************************************************
int main()
{
	char str[101];										//?????
	int i, j, num, a;									//????
	cin.getline (str, 101);								//?????
	num = strlen(str);									//????????
	for (i = 0; i < num; i++)							//????
	{
		a = 0;
		if ( *(str + i) == ' ')							//?????
		{
			for (j = i; j < num; j++)					//???????????
			{
				if (*(str + j) != ' ')
					break;
				a++;
			}
			for (j = i + 1; j < num; j++)				//?????????????
				*(str + j) = *(str + j + a - 1);
		}
	}
	cout << str << endl;								//???????????
	return 0;
}
