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

void
die(char *msg) {
	fprintf(stderr, "%s\n", msg);
	exit(1);
}

#define TEMPLATE_MAXLEN 10100
char
template[TEMPLATE_MAXLEN];

void
read_template(void) {
	int stop = 0;
	size_t pos = 0;
	while (!stop) {
		if (
			TEMPLATE_MAXLEN - pos < 2 ||
			!fgets(template + pos, TEMPLATE_MAXLEN - pos, stdin)
		)
			die("error reading template");
		if ('$' == template[pos])
			stop = 1;
		else
			pos += strlen(template + pos);
	}
}

#define LINE_MAXLEN 4010
char
line[LINE_MAXLEN];

int
more_mail(void) {
	if (!fgets(line, LINE_MAXLEN, stdin))
		die("error reading record head");
	if ('0' == line[0])
		return 0;
	if ('1' == line[0])
		return 1;
	die("error: record head has wrong format");
}

void
process_mail(void) {
	size_t pos;
	size_t len;
	for (pos = 0; '$' != template[pos]; pos++) {
		if ('@' == template[pos]) {
			if ('i' != template[++pos])
				die("error: field marker has wrong format");
			if (!fgets(line, LINE_MAXLEN, stdin))
				die("error reading record body");
			len = strlen(line);
			line[len - 1] = 0;
			fputs(line, stdout);
		} else
			putchar(template[pos]);
	}
}

int
main(void) {
	read_template();
	while (more_mail())
		process_mail();
	return 0;
}