Twelve days of Christmas

This is my fisrt post about obfuscated programming and this stuff seems to be amazing...... at first when I saw this code , I was amazed to see its output ..... kaise ho sakta hain yaar... Then finally found the solution to it... and it was really nicely explained and dealt with... and about the author of the code... he might be a real genius I might say....

During the study of how the program works, I learned about listed expressions and how the value of the whole expression becomes that of the last expression. Aneways the links are nice going through if you have some time.