BEGIN {
	RS="\n"
	FS=";"

	split(ARG_TICKER, _tmp_tickers, ";")
	for (i in _tmp_tickers) {
		tickers[_tmp_tickers[i]] = ""
		hasTickers = 1
	}

	gsub(/[-: ]/, "", ARG_DATE_AFTER);
	gsub(/[-: ]/, "", ARG_DATE_BEFORE);
}

(hasTickers == 1) && ($2 in tickers == 0) { next }

{
	fieldDate=$1
	gsub(/[-: ]/, "", fieldDate);

	if (ARG_DATE_AFTER != "" && ARG_DATE_AFTER > fieldDate) { next }
	if (ARG_DATE_BEFORE != "" && ARG_DATE_BEFORE < fieldDate) { next }
}

{
	if ($2 in unique_tickers == 0) {
		unique_tickers[$2] = ""
	}
}

END {
	for (i in unique_tickers) {
		print i
	}
}