<gh_stars>0
# Copyright © 2017 <NAME> <<EMAIL>>


class Checker:
    def check(self,
              in_testcase,
              out_testcase,
              out_contestant):
        raise NotImplementedError

# Copyright © 2017 <NAME> <<EMAIL>>


class Checker:
    def check(self,
              in_testcase,
              out_testcase,
              out_contestant):
        raise NotImplementedError
# Copyright © 2017 <NAME> <<EMAIL>>