class C:
    def __init__(self, real, imag):
        self.real = real
        self.imag = imag

    def getC(self):
        print(complex(self.real, self.imag))

    def sumC(self, b):
        real = self.real + b.real
        imag = self.imag + b.imag
        return C(real, imag)

    def razC(self, b):
        real = self.real - b.real
        imag = self.imag - b.imag
        return C(real, imag)

    def umnC(self, b):
        real = self.real * b.real - self.imag * b.imag
        imag = self.real * b.imag + self.imag * b.real
        return C(real, imag)

    def delC(self, b):
        real = (self.real * b.real + self.imag * b.imag) / (b.real ** 2 + b.imag ** 2)
        imag = (self.imag * b.real - b.imag * self.real) / (b.real ** 2 + b.imag ** 2)
        return C(real, imag)


a = C(2, 3)
b = C(1, 2)

s = a.sumC(b)
s.getC()

r = a.razC(b)
r.getC()

u = a.umnC(b)
u.getC()

d = a.delC(b)
d.getC()