cube finding 

const readline = require('readline');

const inp = readline.createInterface({

input: process.stdin

});

const userInput = [];

inp.on("line", (data) => {

userInput.push(data);

});

inp.on("close", () => {

//start-here

var n;

n=userInput[0];

console.log(n);

var cube;

cube = n*n*n;

console.log(cube);

//end-here

});

i am getting correct output but aftr submit its showing me private testcase y so plz let me know