Sanalista

from string import printable

numberOfWords = input("")

def count_occurrences(charachter, word):
    return word.count(charachter)

if numberOfWords <= 1000:

    words = []

    x = 0

    while True:
        word = raw_input("")

        if any(not c.isalnum() for c in word):
            print("Word cannot contain special charachters")
            break

        if len(word) > 30:
            print("Too long word")
            break

        words.append(word)

        x+=1

        if x==numberOfWords:
            break

    wordsWithEqualCharachters = []

    for word in words:
        charachters = []

        isWordEligible = False

        for i, c in enumerate(word):
            if count_occurrences(c, word) % 2 == 0:
                isWordEligible = True
            else:
                isWordEligible = False
                break

        if isWordEligible:
            wordsWithEqualCharachters.append(word)

    print(len(wordsWithEqualCharachters))

else:
    print("1000 is the maximum number of words")

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED