export function fibonacci(value) {
  // implementar logica aqui
  if (value < 1) return 0
           if (value <= 2) return 1
           let fib1 = 0
           let fib2 = 1
           let fibN = value
           for (let i = 2; i <=value; i++){
                fibN = fib2 + fib1
                fib1 = fib2            
                fib2 = fibN
           }
           return fibN
}