import re
phoneNumRegex = re.compile(r"\d\d\d-\d\d\d-\d\d\d\d")
mo = phoneNumRegex.search('My number is 415-555-4242.')
print('Phone number found: '+mo.group())
aW1wb3J0IHJlCnBob25lTnVtUmVnZXggPSByZS5jb21waWxlKHIiXGRcZFxkLVxkXGRcZC1cZFxkXGRcZCIpCm1vID0gcGhvbmVOdW1SZWdleC5zZWFyY2goJ015IG51bWJlciBpcyA0MTUtNTU1LTQyNDIuJykKcHJpbnQoJ1Bob25lIG51bWJlciBmb3VuZDogJyttby5ncm91cCgpKSA=