Escribe una función que devuelva true si una cadena dada (dividida y agrupada en un tamaño) contiene un conjunto de números consecutivos ascendentes; de lo contrario, devuelve false.
ascending("123124125") ➞ true
// Contains a set of consecutive ascending numbers
// if grouped into 3's : 123, 124, 125
ascending("101112131415") ➞ true
// Contains a set of consecutive ascending numbers
// if grouped into 2's : 10, 11, 12, 13, 14, 15
ascending("32332432536") ➞ false
// Regardless of the grouping size, the numbers can't be consecutive.
ascending("326325324323") ➞ false
// Though the numbers (if grouped into 3's) are consecutive but descending.
ascending("666667") ➞ true
// Consecutive numbers: 666 and 667.