class Language:
    pass

class Problem:
    pass



class Base:
    pass    

class Algorithm:
    # _input = None
    # _output = None
    
    # initialization
    # maintainace 
    # termination
    #@property
    #def input(self):
    #     pass
    #@property
    #def output(self):
    #     pass
    #def main(self):
    #     pass
    def __init__(self, *args,**kwargs):
        pass
  
    @staticmethod
    def solve(problem):
        pass



#u_t system input
    




