#!/bin/node

const calculate = (arg) => {
    const o2percentage = Number(arg)
    const fO2 = o2percentage / 100
    
    const mod = (ppO2) => (((ppO2 / fO2) - 1) * 10).toFixed(2)
    
    console.log(`EAN${o2percentage} MOD on ppO2:`)
    console.log(`  [1.4] ${mod(1.4)}m`)
    console.log(`  [1.6] ${mod(1.6)}m (deco gas)`)

    if (process.argv.indexOf(arg) != process.argv.length - 1) {
        console.log('')
    }
}

const [ runner, command, ...o2percentages ] = process.argv

o2percentages.forEach(calculate)