function strtoint
    set str $argv[1]
    if [ $(string length $str) = 1 ]
        echo $str
    end
    if [ $str = "one" ]
        echo 1
    end
    if [ $str = "two" ]
        echo 2
    end
    if [ $str = "three" ]
        echo 3
    end
    if [ $str = "four" ]
        echo 4
    end
    if [ $str = "five" ]
        echo 5
    end
    if [ $str = "six" ]
        echo 6
    end
    if [ $str = "seven" ]
        echo 7
    end
    if [ $str = "eight" ]
        echo 8
    end
    if [ $str = "nine" ]
        echo 9
    end
end

set sum 0
for line in $(cat input.txt)
    set nums "(?:one|two|three|four|five|six|seven|eight|nine|\d)"
    # Fuck you
    set nums_fuck "(?:ne|wo|hree|our|ive|ix|even|ight|ine|\d)"
    set first $(string match -gr "($nums)" $line)
    set last $(string match -gr "($nums)(?!.*$nums_fuck)" $line)
    echo $line
    echo $first
    echo $last

    set first_n $(strtoint $first)
    set last_n $(strtoint $last)
    echo "-"
    echo $first_n
    echo $last_n

    set n $first_n$last_n
    echo "-"
    echo $n
    set sum $(math $sum + $n)

    echo "---"
end

echo $sum