Constructing an LC-3 symbol table - lc3

Question

I have a question about symbol tables. Now according to my textbook the rules of a symbol table are as follows:
Find the .ORIG statement,
which tells us the address of the first instruction and initialize location counter (LC), which keeps track of the
current instruction.
For each non-empty line in the program:
a) If line contains a label, add label and LC to symbol table.
b) Increment LC.
– NOTE: If statement is .BLKW or .STRINGZ,
increment LC by the number of words allocated.
Stop when .END statement is reached.
I'm having a problem with the second rule. Specifically, the statement about .BLKW or .STRINGZ (increment LC by the number of words allocated). I could not find any example in the textbook that could help me understand this, but I did find some code online.
In my example code, what are the addresses of the statements that contain .BLKW and .STRINGZ?
01 .ORIG x 3000
02
03 INIT
04 LEA R0, START.STR
05 JSR PRINST.STR
06 LD R0, TEN
07 LEA R1, DATA.B
08
09 STORE_LOOP
10 STR RO, R1, %0
11 ADD R1, R1, %1
12 ADD R0, R0, %-1
13 BRp ST.LOOP
14
15 LD R0, TEN
16 ADD R1, R1, %-1
17 AND R2, R2, %0
18
19 ADD_LOOP
20 LDR R3, R1, %0
21 ADD R2, R3, R2
22 ADD R1, R1, %-1
23 ADD R0, R0, %-1
24 BRp ADD_LOOP
25
26 STORE_SUM
27 ST R2, RESULT
28 TRAP %25
29
30 PRINT_STR
31 ST R7, SAVE.R7
32 PUTS
33 LD R7, SAVE.R7
34 RET
35
36 TEN .FILL #10
37 SAVE.R7 .BLKW #1
38 DATA.B .BLKW #10
39 START_STR .STRINGZ "Starting..."
40 RESULT .FILL #0
41 END

Answer 1

Code annotated with comments showing the address of each one.
01 .ORIG x 3000
02
03 INIT ; x3000
04 LEA R0, START.STR ; x3000
05 JSR PRINST.STR ; x3001
06 LD R0, TEN ; x3002
07 LEA R1, DATA.B ; x3003
08
09 STORE_LOOP ; x3004
10 STR RO, R1, %0 ; x3004
11 ADD R1, R1, %1 ; x3005
12 ADD R0, R0, %-1 ; x3006
13 BRp ST.LOOP ; x3007
14
15 LD R0, TEN ; x3008
16 ADD R1, R1, %-1 ; x3009
17 AND R2, R2, %0 ; x300A
18
19 ADD_LOOP ; x300B
20 LDR R3, R1, %0 ; x300B
21 ADD R2, R3, R2 ; x300C
22 ADD R1, R1, %-1 ; x300D
23 ADD R0, R0, %-1 ; x300E
24 BRp ADD_LOOP ; x300F
25
26 STORE_SUM ; x3010
27 ST R2, RESULT ; x3010
28 TRAP %25 ; x3011
29
30 PRINT_STR ; x3012
31 ST R7, SAVE.R7 ; x3012
32 PUTS ; x3013
33 LD R7, SAVE.R7 ; x3014
34 RET ; x3015
35
36 TEN .FILL #10 ; x3016
37 SAVE.R7 .BLKW #1 ; x3017
38 DATA.B .BLKW #10 ; x3018
39 START_STR .STRINGZ "Starting..."; x3022
40 RESULT .FILL #0 ; x302E
41 END
Things to note.
Whenever you encounter a BLKW you add however many addresses it is reserving.
Whenever you encounter a .stringz you add however many characters that are in the string PLUS 1 for the NUL terminator character.
Also (for at least the tools I work with) some assemblers / simulators will generate a symbol table file when assembling, and some simulators will visibly show what labels are at what addresses.