Sanalista

n = int(input())

sanat = [input() for i in range(n)]

# print(sanat)

let = {}
for i in range(97, 123):
    let[chr(i)] = 0

result = 0

for word in sanat:
    l = let.copy()
    fail = False

    for ch in word:
        l[ch] += 1

    for key in l:
        if l[key] % 2 != 0:
            fail = True
            break
    if fail:
        continue
    else:
        result += 1

print(result)

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED