function performOperation(secondInteger, secondDecimal, secondString) {
const firstInteger = 4;
const firstDecimal = 4.0;
const firstString = "HackerRank ";
console.log(firstInteger + Number(secondInteger));
const firstNum = Number(firstDecimal).toFixed(2);
const secondNum = Number(secondDecimal).toFixed(2);
const answer = Number(firstNum) + Number(secondNum);
console.log(answer);
console.log(firstString + secondString);
}