Sanalista

n = int(input())
sl = []
man = 0
for x in range(n):
    sl.append(input())
 
def CheckDict(d):
    for i, (key, value) in enumerate(d.items()):
        if(value % 2 != 0):
            return 0
        elif(i == (len(d)-1)):
            return 1
 
 
for s in sl:
    d = {}
    for i, k in enumerate(s):
        if k in d:
            d[k] += 1
        else:
            d[k] = 1
 
    man += CheckDict(d)
 
print(man)

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED