Sanalista

def c(w):
    for i in range(0, len(w)-1):
        if w.count(w[i]) % 2 != 0:
            return 0
    return 1
x = int(input())
it = 0
for i in range(0, x):
    y = str(input())
    if c(y):
        it += 1
print(it)

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED