// your code goes here
var Arr=["William","Ogbuji","John","Mercy"];
Arr[3]="Favour";
let arrL=Arr.length;
let text="";
for(let x=0; x<arrL; x++)
{text +=Arr[x]+","+" "};
console.log(text)
Ly8geW91ciBjb2RlIGdvZXMgaGVyZQp2YXIgQXJyPVsiV2lsbGlhbSIsIk9nYnVqaSIsIkpvaG4iLCJNZXJjeSJdOwpBcnJbM109IkZhdm91ciI7CmxldCBhcnJMPUFyci5sZW5ndGg7CmxldCB0ZXh0PSIiOwpmb3IobGV0IHg9MDsgeDxhcnJMOyB4KyspCnt0ZXh0ICs9QXJyW3hdKyIsIisiICJ9OyAKY29uc29sZS5sb2codGV4dCk=