function swim(input) {
    let record = Number(input.shift());
    let lenght = Number(input.shift());
    let secsPerM = Number(input.shift());

    let slowTimes = lenght / 15
    let delay = parseInt(slowTimes) * 12.5
    let totaltime = (lenght * secsPerM) + delay

    if (totaltime < record) {
        console.log(`Yes, he succeeded! The new world record is ${totaltime.toFixed(2)} seconds.`)
    } else if (totaltime > record) {
        let timeNeeded = totaltime - record
        console.log(`No, he failed! He was ${timeNeeded.toFixed(2)} seconds slower.`)
    }

}
swim([10464,
    1500,
    20])