export function fibonacci(value) {
  // implementar logica aqui
  if (value < 1) { 
    return 0;
  } else if (value <= 2) {
    return 1;
  } else {
  let previous = 0;
  let next = 1;
  let total;
  for (let i = 2; i <= value; i++) {
       total = next +  previous;
       previous = next;
       next = total;
      }
    return total;
    }
  }