file = open('input.txt','r')

tmp = file.readlines()

count = 0
items = []
items.append('')

for t in tmp:
    #print(str(count))
    if t == '\n':
        #print('newline')
        items.append('')
        count += 1
    else:
        #print(t)
        items[count] += ' '+t

valid = 0

def isvalid(item):
    tmp = item.strip().replace('\n','').split(' ')
    vals = []
    for t in tmp:
       vals.append(t.split(':'))
    for v in vals:
        print(v)
        if v[0] == 'byr':
            val = int(v[1])
            if val > 2002 or val < 1920:
                print('byr invlid')
                return False
        if v[0] == 'iyr':
            val = int(v[1])
            if val > 2020 or val < 2010:
                print('iyr invlid')
                return False
        if v[0] == 'eyr':
            val = int(v[1])
            if val > 2030 or val < 2020:
                print('eyr invlid')
                return False
        if v[0] == 'hgt':
            unit = v[1][-2:]
            if unit not in ['cm','in']:
                print('hgt wrong unit')
                return False
            val = int(v[1].replace(unit,''))
            if unit == 'in':
                if val > 76 or val < 59:
                    print('hgt out of range')
                    return False
            if unit == 'cm':
                if val > 193 or val < 150:
                    print('hgt out of range')
                    return False
        if v[0] == 'hcl':
            if len(v[1]) != 7:
                print('hcl to short')
                return False
            if v[1][1] == '#':
                print('hcl wrong format')
                return False
            for c in v[1].replace('#',''):
                if c not in ['0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f']:
                    print('hcl unexpected char '+c)
                    return False
        if v[0] == 'ecl':
            if len(v[1]) != 3:
                print('ecl to short')
                return False
            if v[1] not in ['amb', 'blu', 'brn', 'gry', 'grn', 'hzl', 'oth']:
                print('ecl undefined value')
                return False
        if v[0] == 'pid':
            if len(v[1]) != 9 or not v[1].isnumeric():
                print('pid invaldi')
                return False
    return True

for i in items:
    if 'byr' not in i:
        continue
    if 'iyr' not in i:
        continue
    if 'hgt' not in i:
        continue
    if 'hcl' not in i:
        continue
    if 'ecl' not in i:
        continue
    if 'pid' not in i:
        continue
    if 'eyr' not in i:
        continue
    if isvalid(i):
        valid += 1

print(str(valid))