#!/bin/sh -eu
p1() (
	max=0
	temp=0
	while IFS= read -r l
	do
		if [ -z $l ]
		then
			if [ $temp -gt $max ]
			then
				max=$temp
			fi
			temp=0
		else
			temp=$((temp + l))
		fi
	done < input.txt
	printf "%s\n" "$max"
)

p2() (
	set -- 0 0 0
	temp=0
	while IFS= read -r l
	do
		# TODO: check EOF
		if [ -z $l ]
		then
			if [ $temp -gt $1 ]
			then
				shift
				set -- $@ $temp
				set -- $(printf "%s\n" "$@" | sort -n)
			fi
			temp=0
		else
			temp=$((temp + l))
		fi
	done < input.txt
	sum=0
	for i in $@
	do
		sum=$((sum + i))
	done
	printf "%s\n" "$sum"
)

p1
p2