Competitions

# Week 10: January 18 - 24

# Complex numbers: multiplication and division

Two complex numbers are given. Find their product or quotient.

#### Input

Each line contains an example of multiplication or division of complex numbers. The complex number is given in the format **a**+**bi** or **a**-**bi**, where **a** is integer, **b** is non-negative integer. The real and imaginary part of each complex number is no more than `10`

by absolute value.^{9}

#### Output

For each input example, print in a separate line the answer.

Input example #1

2+3i * 7-4i 12-4i / 5-4i -1-1i * -1-1i 5-2i / -7+12i

Output example #1

26.00+13.00i 1.85+0.68i 0.00+2.00i -0.31-0.24i