Installing ubuntu 14 LTS: keyboard and мышь do not function

i wanted to try ubuntu 14 but when i try to install it on my laptop which is lenovo a10-30, мышь and keyboard do not fucntion i know that many had the same problem, but i can't reach to конечный in that женил please if anybody хан tell я how to enable my мышь and keyboard while installing the system, it would be great. thanks in advance.