Complete the function that takes two integers (`a, b`, where `a < b`) and return an array of all integers between the input parameters, **including** them.
For example:
```
a = 1
b = 4
--> [1, 2, 3, 4]
```
def between(a,b):
    s = [a]
    while s[-1] < b:
        t=s[-1]+1
        s.append(t)
    return s

def between(a,b):
    s = [a]
    while s[-1] < b:
        t=s[-1]+1
        s.append(t)
    return s
