Assigning value from a variable to a block name

It's easy to assign a value to a variable (symbol) like this

(setq a 2)

!a

2

How can I assign that variable name to a block name

(command "block"

!a ?

(print a)

(princ a)

(list a)

(a)

I really cannot understand how this extremely easy function has been so difficult for me to find out how to be solved.

Please help me with this.

Thanks in advance

Autocad release 2006

I was able to solve the problem assigning the value from a variable or a symbol as the name from a block. The problem I have now is how to combine the value from two variables as the name from a block

(setq a "sample")

(setq b 1)

(princ a)(princ b)

sample1

This last value is the one I want to assign as a block nmae... so far I have done this:

(defun c:sample ()

(setq a "sample")

(setq b 1)

(setq c (princ (princ a(princ b))

(command

"block" (princ a) ;;this is the part not working so far

)

Thanks in advance and still in AutoCAD 2006

(setq a "sample")

(setq b 1)

(setq b$ (itoa b));converts integer to a string

(setq a_b (strcat a b$));combines strings

(command "block" a_b)