Dear,

 

In JEE ,you have to find the no of combinations not the list as arun.k.iit has given the solution. but if you want to write a prog. its possible but you have to know some syntx of that language.

 

for example in C you can write a program:

 

In C every alphabet has its individual ASCII  value in int..

 

so by using the for loop  you can write the program.