UNIX for Advanced & Expert Users

Hi friends..
I am using the below command to search few files from many folders which is under one folder..

i mean let say the path is A/B/C...and inside C...i have 1-10 folder...

the below command is working fine....

find /A/B/C -name "*.txt" -o -name "*.csv" -o -name "*.TXT" -o -name "*.dat" |xargs ls -ltr |awk '{print $8 ,$9}' > result.txt

this will give me the result from the folder 1-10 which is inside A/B/C and print the file having the above extension into result.txt...


Help needed..

i need the syntax so that my syntax will search the file only from folder 1,3,5,7 and the out put from these 4 folder will be display in the single file i.e result.txt....

the above 1,3,5,7 folders are inside A/B/C