Unable to type my password and Mouse Keys not disabled

Hello
I want enter password for login to Yosemite but most keys not work unless some keys:
7 , 8 , 9
U , I , O
J , K , L
M , >
I guess "Mouse Keys" accessibility feature enabled in Mac
(My device is 13" MacBook Pro and keyboard has no numeric keyboard)
I press the Option key five times but keyboard still not works, I think "five time press option key" for disable Mouse Key feature unchecked!
What can I do ?
Unfortunately I haven't guest login option



Any help will be greatly appreciated!

 

I used a usb keyboard and could to log in. solves the problem

thanks a lot dear