import * as R from 'remeda';


export const extract_number = (line) => {
    const n = line.match(/(\d)/g);
    return parseInt(
        n[0] + n[n.length-1]
    );
}

export const solution_1 = R.createPipe(
        i => i.split("\n"),
        R.compact,
        R.map(extract_number),
        R.sumBy(R.identity)
    );