files = [i.rstrip() for i in open("input").readlines()]

def naughtyornice(string):
    # do the vowel scan
    vowels = "aeiou"
    vowelcount = 0
    for i in string:
        if i in vowels:
            vowelcount += 1

    if vowelcount < 3:
        return False

    # double letter thing
    last = None
    containsdouble = False
    for i in string:
        if i == last:
            containsdouble = True
            break

        last = i

    if not containsdouble:
        return False

    # naughty doubles check
    for i in ['ab', 'cd', 'pq', 'xy']:
        if i in string:
            return False

    return True

nicecount = 0
for i in files:
    if naughtyornice(i):
        nicecount += 1

print(nicecount)