Input (grade 13): In the Gregorian calendar, it is the 2011th year of the Common Era and the Anno Domini designation; the 11th year of the 3rd millennium and of the 21st century; and the 2nd of the 2010s decade.
Output (grade 10): It is the 2011th year in the Common Era (or Anno Domini), and the 11th year in the 3rd millennium and 21st century.