//

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

typedef unsigned char bool;

const int MaxCount = 255;
FILE* pFile = NULL;
char* Buf;

typedef struct
{
	char* s;
	int size, allocated_size;
} string;

typedef struct
{
	string* S;
	int size, allocated_size;
} array_of_string;

array_of_string Words;

void init_s(string* S)
{
	S->size = 0;
	S->allocated_size = 1;
	S->s = (char*)malloc((S->allocated_size + 1) * sizeof(char));
	S->s[0] = '\0';
}

void init_as(array_of_string *A)
{
	A->size = 0;
	A->allocated_size = 1;
	A->S = (string*)malloc(A->allocated_size * sizeof(string));
}

void push_back_s(string *S, char c)
{
	if (S->size++ == S->allocated_size)
	{
		S->allocated_size *= 2;
		char *big_buf = (char*)malloc((S->allocated_size + 1) * sizeof(char));
		strncpy(big_buf, S->s, S->size + 1);
		free(S->s);
		S->s = big_buf;
	}
	char *curr_word = (char*)malloc(2 * sizeof(char));
	curr_word[0] = c;
	curr_word[1] = '\0';
	strcat(S->s, curr_word);
}

void push_back_as(array_of_string *A, string S)
{
	if (A->size++ == A->allocated_size)
	{
		A->allocated_size *= 2;
		string *big_buf = (string*)malloc((A->allocated_size) * sizeof(string));
		memcpy(big_buf, A->S, (A->size - 1) * sizeof(string));
		free(A->S);
		A->S = big_buf;
	}

	A->S[A->size - 1] = S;
}

bool isAlpha(char c)
{
	return ('A' <= c && c <= 'Z') || ('a' <= c && c <= 'z') || ('0' <= c && c <= '9') || c == '_' || c == '-';
}

bool isSpace(char c)
{
	return c == ' ' || c == '\t' || c == '\0' || c == '&' || c == ',' || c == ';' || c == '.';
}

bool isApostrophe(char c)
{
	return c == '\'';
}

bool isQuotmark(char c)
{
	return c == '"';
}

void read_line(const char* fileName)
{
	Buf = (char*)malloc(MaxCount * sizeof(char));
	pFile = fopen(fileName, "r");
	if (pFile != NULL)
	{
		fgets(Buf, MaxCount, pFile);
		fclose(pFile);
	}
}

void parse()
{
	enum { collect, free, apostrophe, quotmark };

	char state = free;
	int cnt = 0;
	char ch = Buf[cnt++];
	string curr_word;

	while (ch != '\n')
	{
		switch (state)
		{
			case collect: case free:
				if (isAlpha(ch))
				{
					if (state == collect)
						push_back_s(&curr_word, ch);
					else
					{
						init_s(&curr_word);
						push_back_s(&curr_word, ch);
						state = collect;
					}
				}
				else
				{
					if (state == collect)
						push_back_as(&Words, curr_word);
					state = free;
					init_s(&curr_word);
					if (isApostrophe(ch))
					{
						state = apostrophe;
						push_back_s(&curr_word, ch);
					}
					else
						if (isQuotmark(ch))
						{
							state = quotmark;
							push_back_s(&curr_word, ch);
						}
						else
							if (!isSpace(ch))
							{
								push_back_s(&curr_word, ch);
								push_back_as(&Words, curr_word);
								init_s(&curr_word);
							}
				}
				break;

			case apostrophe:
				push_back_s(&curr_word, ch);
				if (isApostrophe(ch))
				{
					push_back_as(&Words, curr_word);
					init_s(&curr_word);
					state = free;
				}
				break;

			case quotmark:
				push_back_s(&curr_word, ch);
				if (isQuotmark(ch))
				{
					push_back_as(&Words, curr_word);
					init_s(&curr_word);
					state = free;
				}
				break;
		}
	}
	if (curr_word.size != 0)
	{
		push_back_as(&Words, curr_word);
		init_s(&curr_word);
	}
}

void print_words()
{
	int i = 0;
	for (; i < Words.size; i++)
		printf("%s\n", (Words.S[i]).s);
	printf("\n");
}

int main(int argc, const char* argv[])
{
	if (argc > 1)
		fprintf(stderr, "Wrong input!");

	read_line(argv[0]);

	parse();

	print_words();

	return 0;
}