class EvenInt(int):


    def __init__(self, i):
        self.value = i
        
    def __add__(self, other):
        if (self.value + other) % 2 == 1:
            return (self.value + other + 1)
        else:
            return (self.value + other)
     
    def __radd__(self, other):
        return self.__add__(other)
     
     
     
a = EvenInt(3)
b = a + 2
c = 2 + a
print(b)
print(c)