Well, it is strange, but when I try to read, value from 1 input for 4 times, like “VA VA VA VA”, at 4th time it returns correct value … Very strange …
Similar situation for any output from A to H. This can not be because of sensor issue, there is no such behavior when I read from BotBoarduino pin … Everything was also great when I was reading from USB, not from Serial. Yes, also, I read values from sensor in completely same way you do in the example … So I bet this is a bug … 
Anyway, reading value from one sensor for 4 times, is a workaround to make it work. Thank you very much for your rapid responses. But it will be great to fix this 
Kind regards,
Erik Martirorsyan