2 digits are enough
google api version 3
* https://developers.google.com/blogger/docs/3.0/api-lib/java
* http://mvnrepository.com/artifact/com.google.apis/google-api-services-blogger/v3-rev25-1.17.0-rc
so painful. just to make a builder instance to make a blogger instance eventually, so much amount of plumbinb codes required