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First solution in Clear category for Common Words by Machinero
def checkio(first, second):
first = first.split(",")
second = second.split(",")
first = set(first)
second = set(second)
result = sorted(first.intersection(second))
result = ",".join(result)
return result
#These "asserts" using only for self-checking and not necessary for auto-testing
if __name__ == '__main__':
assert checkio("hello,world", "hello,earth") == "hello", "Hello"
assert checkio("one,two,three", "four,five,six") == "", "Too different"
assert checkio("one,two,three", "four,five,one,two,six,three") == "one,three,two", "1 2 3"
Nov. 29, 2016
