16 lines
296 B
Python
16 lines
296 B
Python
#!/usr/bin/python3
|
|
|
|
import re
|
|
|
|
def is_number(test):
|
|
pattern = re.compile(r'^(1 roczek)|(2 latka)|(3 latka)|(4 latka)|(\d{1,2} (lat))$')
|
|
|
|
result = re.match(pattern, test)
|
|
if result:
|
|
return "yes"
|
|
else:
|
|
return "no"
|
|
|
|
for line in sys.stdin:
|
|
print(is_number(line))
|