How to fix syntax error . i have run this below script find next roll output…but it is showing syntax error [closed]

const = require(“crypto”);

const roundSeed = “”; /YOUR SERVER SEED/

const clientSeed = “”; /YOUR CLIENT SEED/

const nonce = “”; /YOUR GAME’S NONCE/

function saltWithClientSeed(serverSeed, clientSeed) {

return crypto

.createHmac(“sha512”, serverSeed)

.update(clientSeed)

.digest(“hex”);

}

function generateHash(serverSeed) {

return crypto

.createHash(“sha256”)

.update(serverSeed)

.digest(“hex”);

}

function buildFinalHash(serverSeed, clientSeed, nonce) {

const noncedSeed = ${clientSeed} - ${nonce};

return saltWithClientSeed(serverSeed, noncedSeed);

}

function rollNumber(hash) {

let index = 0;

let lucky = parseInt(hash.substring(index * 5, index * 5 + 5), 16);

// keep grabbing characters from the hash while greater than

while (lucky >= Math.pow(10, 6)) {

index++;

lucky = parseInt(hash.substring(index * 5, index * 5 + 5), 16);

// if we reach the end of the hash, just default to highest number

if (index * 5 + 5 > 128) {

lucky = 9999;

break;

}

}

lucky %= Math.pow(10, 4);

lucky /= Math.pow(10, 2);

return lucky;

}

function verifyRoll() {

const hash = buildFinalHash(roundSeed, clientSeed, nonce);

return rollNumber(hash);

}

console.log(verifyRoll());