def char_counter(string):
    counter = 1
    string = sorted(string)
    helper = set(string)
    counters_list = []
    for i in range(1, len(string)):
        if string[i] == string[i - 1]:
            counter += 1
        else:
            counters_list.append(counter)
            counter = 1
    counters_list.append(counter)
    return dict(zip(helper, counters_list))


def assembler(x, main):
    x = char_counter(x)
    main = char_counter(main)
    for key in x.keys():
        if key in main:
            if main[key] < x[key]:
                return False
        else:
            return False
    return True


print(assembler("aaaa", "aaab"))