Please solve correctly and double check your answer.

The free end of a cantilever $AB\text{'}4a\text{'}$ long is supported from below on the free

end $C$ of the cantilever $C{D}^{\text{'}}\text{'}2$a$\text{'}$ long through a roller as shown in figure. The two beams have uniform

and equal flexural rigidities and carry a UDL of intensity w$/$unit length. Draw the BMD for $AB$ and $CD.$