mod sub 3

def mapper(lst1, lst2):
    if len(lst1) == 0 or len(lst2) == 0:
        return {}

    ans = dict()
    ans[lst1[0]] = lst2[0]
    ans.update(mapper(lst1[1:], lst2[1:]))
    return ans

print(mapper([1, 18, 118], [0, 1, 1, 1]))