ananab

def conta_caratteri(s):
    d = {}
    for c in s:
        if c not in d:
            d[c] = 1
        else:
            d[c] += 1

    return d


def ex1(inputList):
    conta_caratteri_dict = {}

    for k in inputList:
        conta_caratteri_dict[k] = conta_caratteri(k)



    d = {}

    for s in inputList:

        flag = False
        key = ""

        for k in d:
            if conta_caratteri_dict[s] == conta_caratteri_dict[k]:
                flag = True
                key = k


        if flag is True:
            d[key][0].add(s)
            d[key] = (d[key][0], d[key][1] + 1)


        else:
            d[s] = (set(),0)

    return d




l = ['banana','ananab','anana','naana','annaa','2552']
a,b = ex1(l)
print(a)