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#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main()
{
	int k = 0, l, q, n = 0, i = 0, lengthtext = 0, lengthwords = 0;
	int count = 0;
	int flag = 0;
	char c;
	char her[2];
	char words[100];
	char text[2000] = { '0' };
	FILE* in;
	FILE* out;
	in = fopen("input.txt", "r");
	out = fopen("output.txt", "w");
	if (in == NULL)
	{
		printf("файл text.txt не открыт\n");
	}
	else
	{
		fscanf(in, "%s", words);
		//printf("%s\n", words);
		fgets(&text[i], 2000, in);

		for (int k = 0; !feof(in); k++)
		{
			c = getc(in);
			text[k] = c;
			//printf("Element %c writed in %d\n", c, k);
		}
		lengthwords == strlen(words) - 1;
	    lengthtext == strlen(text) - 1;
		while (k < lengthtext )
		{

			for (int k = 0; k < lengthtext; k++)
			{
				if (words[i] == text[k] && text[k] != '\n' && text[k] != '\t' && text[k] != ' ')
				{
					for (int i = k; i <= lengthwords; l++)
					{
						if (words[i] == ' ' && (text[k] == '\n' || text[k] == ' ' || text[k] == '\t'))
							i++;
						if (words[i] == text[k])
						{
							k++;
							i++;
						}
					}
				}
				else
					k++;
				if (lengthwords == k)
				{
					lengthtext++;
					for (int i = lengthtext - 1; i >= n; i--)
						text[i + 1] = text[i];
					text[n] = '@';
					l++;
				}
				k = 0;
				l = 0;
			}
		}
		fprintf(out, "%s", text);
		fclose(in);
		fclose(out);
	}
	return 0;
}