export function intercalateChars(first: string, second: string): string {
  const max = Math.max(first.length, second.length);
  let string = "";
  for (let i = 0; i < max; i++) {
    if (i < first.length) string += first[i];
    if (i < second.length) string += second[i];
  }
  return string;
}