advent_of_code_2020_day1_part2

#!/bin/bash

inputs="$(<$1)"

while read i
do
  inputs="`echo "$inputs" | sed 1d`"
  while read x
  do
    while read z
    do
      sum=$(($x + $i + $z))
      if [ $sum -eq 2020 ]
      then
        echo $(($x * $i *$z))
        exit 0
      fi
    done <<< $inputs
  done <<< $inputs
done <<< $inputs