Getting different error when trying reference with ref number of list and exact string name

[Rakesh Parida]

iam getting the proper value if i use the Reference number of list in my input file (3 is entry for EIL_adaptor).

Now if i try "ABC" instead of 3 it gives error

  

 tasks:

    - name:  Set file as variable

      include_vars:

        file: "{{ input_file }}"

        name: x

 - name: Debug

      debug:

       msg: "{{ x['deliveries'][0]['releases'][0]['latest_RC25'][3]}}"

TASK [Debug] ***********************************************************************************************************************************************************

ok: [localhost] => {

    "msg": {

        "ABC": {

            "file_name": "abc",

            "md5": "",

            "product_name": "ABC,

            "product_number": "ABC 902 7815",

            "release_candidate": "RC25",

            "version": "25.1.0"

        }

 tasks:

    - name:  Set file as variable

      include_vars:

        file: "{{ input_file }}"

        name: x

 - name: Debug

      debug:

       msg: "{{ x['deliveries'][0]['releases'][0]['latest_RC25'][ABC]}}"

It gives an error.