Ruudukko

from itertools import groupby

def main():
    n = int(input())
    merk = []
    for a in range(n):
        merk.append(input())

    num = [i for i in "123456789"]
    for a in range(0, len(merk)):
        sana = list(dict.fromkeys(merk[a]))
        n = 0
        for b in range(0, len(sana)):
            merk[a] = merk[a].replace(sana[b], num[n])
            n += 1
    n = 0
    for a in [len(list(group)) for key, group in groupby(sorted(merk))]:
        n += sum(list(range(1, a)))
    print(n)

if __name__ == '__main__':
    try:
        main()
    except:
        print('Vittu')

Test 1

Verdict: WRONG ANSWER

Test 2

Verdict: WRONG ANSWER

Test 3

Verdict: WRONG ANSWER

Test 4

Verdict: WRONG ANSWER

Test 5

Verdict: WRONG ANSWER

Test 6

Verdict: WRONG ANSWER