def reverse(x):
    """returns the list x reversed"""
    ans = []
    for i in range(len(x)):
        ans.append(x[len(x)-1-i])
    return ans



def reverseInPlace(x):
    """reverse the elements within x, returns nothing"""
    length = len(x)
    for i in range(length/2):
        temp = x[i]
        x[i] = x[length-1-i]
        x[length-1-i] = temp
    return