# class XPTO:
#     def __init__(self, ctx):
#         self.__msg = "Echo"
#         if(ctx):
#             self.__var1 = 3
#             self.__var2 = 0.0
#         else:
#             self.__var1 = 3
#             self.__var2 = 2.0

#     def get_var1(self):
#         return self.__var1

#     def get_var2(self):
#         return self.__var2
    
    
# my_obj = XPTO(True)
# print("__var1 =", my_obj.get_var1())
# print("__var2 =", my_obj.get_var2())
# # print(my_obj.susp(4))

# a = {'a':1, 'b':2}
# print(a['a', 'b'])

# class A:
#     def __init__(self):
#         self.i = None
    
# class B(A):
#     def __init__(self):
#         self.j = None
    
#     def display(self):
#         print(self.i)

# obj = B()
# obj.j = 2
# obj.display()   

tuple_a = ('1', '2')
tuple_b = ('3', '4')
print(tuple_a + tuple_b)