import re
m=lambda x:None!=re.match(r'(by.:(1...|200[0-2])|iyr:20(1.|20)|eyr:20(2.|30)|hgt:...(n|cm)|hc.:#.{6}|ec.:..[buynlh]|pi.:.{9})$',x)
print(sum(map(lambda x:(lambda x:6<sum(map(m,x)))(x.split()),open(0).read().split("\n\n"))))