function findDuplicates(numbers: number[]): number[] {
  let array_duplicates:number[]=[];
  for(let i in numbers){
    if(numbers.includes(numbers[i],parseInt(i)+1) && !array_duplicates.includes(numbers[i]))
    array_duplicates.push(numbers[i])
  }
  return array_duplicates.sort();
}

// No modificar: necesario para evaluar el resultado.
export { findDuplicates };