18 lines
277 B
Plaintext
18 lines
277 B
Plaintext
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#!/usr/bin/python3
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import sys
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import re
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count = 0
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def is_number(test):
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pattern = re.compile(r'[0-9] [0-9]+ [a-z](\s\d+.\d+){0,1}')
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result = re.match(pattern, test[:-1])
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if result:
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count += 1
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for line in sys.stdin:
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is_number(line)
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print(count)
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