JSFiddle - React, Tailwind, and code Playground

JavaScript

const car1 = ["A", "B", "C"];
const car2 = ["a", "b", "c"];
const car3 = ["1", "2", "3"];
const car4 = ["X", "Y" , "Z"];
const car5 = ["x", "y" , "z"];

let message = "";
for (let pos = 0; pos < 3; pos++) { // Loop over the element position inside an array
    for (let i = 1; i < 6; i++) { // Loop over arrays
        message += eval("car" + i)[pos];
    }
}
console.log(message);