Complex Number Class

 Complex Number Class.... Doubt

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A ComplexNumber class contains two data members : one is the real part (R) and the other is imaginary (I) (both integers).

Implement the Complex numbers class that contains following functions -

1. constructor

You need to create the appropriate constructor.

2. plus -

This function adds two given complex numbers and updates the first complex number.

e.g.

if C1 = 4 + i5 and C2 = 3 +i1
C1.plus(C2) results in: 
C1 = 7 + i6 and C2 = 3 + i1

3. multiply -

This function multiplies two given complex numbers and updates the first complex number.

e.g.

if C1 = 4 + i5 and C2 = 1 + i2
C1.multiply(C2) results in: 
C1 = -6 + i13 and C2 = 1 + i2

4. print -

This function prints the given complex number in the following format :

a + ib

Note : There is space before and after '+' (plus sign) and no space between 'i' (iota symbol) and b.

Input Format :

Line 1 : Two integers - real and imaginary part of 1st complex number
Line 2 : Two integers - real and imaginary part of 2nd complex number
Line 3 : An integer representing choice (1 or 2) (1 represents plus function will be called and 2 represents multiply function will be called)

Output format :

Check details of 'print' function given above.

Sample Input 1 :

4 5
6 7
1

Sample Output 1 :

10 + i12

Sample Input 2 :

4 5
6 7
2

Sample Output 2 :

-11 + i58