import sys
a = 0
fl = sys.stdin.readlines()
for line in fl:
a += 1
print(a)
aW1wb3J0IHN5cwphID0gMApmbCA9IHN5cy5zdGRpbi5yZWFkbGluZXMoKQpmb3IgbGluZSBpbiBmbDoKICAgIGEgKz0gMQpwcmludChhKQ==
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
81.5.118.201 - - [13/Feb/2017:09:53:59 +0000] "GET / HTTP/1.1" 200 6797 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_5) AppleWebKit/601.6.17 (KHTML, like Gecko) Version/9.1.1 Safari/601.6.17"
193.200.211.75 - - [13/Feb/2017:06:25:57 +0000] "GET / HTTP/1.1" 502 584 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3004.3 Safari/537.36"
213.180.218.99 - - [13/Feb/2017:17:50:07 +0000] "GET / HTTP/1.1" 200 6143 "-" "Go-http-client/1.1"