this bot will put your name in github.com/izabera 1-2-3 ranking

record.sh

#!/bin/bash
# this bot will put your name in izabera's 1-2-3 ranking
# https://github.com/izabera/1-2-3
# run it with socat like:
# socat TCP4:arin.ga:44444 EXEC:/full/path/to/record.sh,fdin=3,fdout=4
# 
read -n4 line <&3
echo "a">&4
ans=0
score=0
while read line; do
	echo "$line" >&2
	if grep -qoE "([0-9] [-+=] ){2,}\?" <<< "$line"; then 
		line="${line//=*/}"
		(( ${score:-0} <= 783909 )) && ans=$((${line})) || ans=9
		echo -n "${ans}" >&4
	elif grep -qoE "score: [0-9]+" <<< "$line"; then
		score=$(grep -Eo ": [0-9]+" <<< "$line")
		score="${score/: /}"
	elif fgrep -q "new high score!" <<< "$line"; then
		sleep 3;
		for i in a t c a s a n o v a a t c a s a n o v a ; do
			echo -n "$i" >&4
		done
	fi
done <&3