function secretChat(input) {
    input = input.slice(0, input.indexOf("Reveal"))
    let message = input.shift()
    const chat = {
        InsertSpace: insertSpace,
        Reverse: reverse,
        ChangeAll: changeAll,
    }
    function insertSpace(i) { message = `${message.substring(0, i)} ${message.substring(i)}` }
    function reverse(a) {
        if (!message.includes(a)) {
            console.log("error")
            return null
        }
        message = message.replace(a, "")
        message = `${message}${a.split("").reverse().join("")}`
    }
    function changeAll(a, b) {
        b = b.replace(/[-[\]/{}()*+?.\\^$|]/g, "\\$&")
        const r = new RegExp(a, "g")
        message = message.replace(r, b)
    }
    input.forEach(x => {
        const [command, k, m] = x.split(":|:")
        if (chat[command](k, m) !== null) console.log(message)
    })
    console.log(`You have a new text message: ${message}`)
}