Write a program that takes three vectors $(vec(A),$vec$(B),$vec$(C))$ and does the following operations:

Draws a red arrow for vec$(A),$ a blue arrow for vec$(B),$ and a green arrow for vec$(C).$

Computes the magnitude of vec$(A)$ and prints out the answer.

Computes vec$(A)-3$vec$(B)+2$vec$(C)$ and prints out the answer.

Computes vec$(C)**vec(B)$ and prints out the answer.

Computes vec$(D)=$vec$(A)$vec$(B)$ and prints out the answer.

Computes the unit vector widehat$(D)$ and prints out the answer.