Concatenating the lists in groovy

I have captured 2 set of value by using Json extractor in JMeter which I want to concatenate. let me give you example below for the format which I want to use.

Following is the 2 set of captured values:

Set 1: [V2520 V2522 V2521 V2500 V2500]

Set 2: [PL PL PL NP NP]

So from the above 2 sets, I am looking for the something like the following value, because the body which I have to send in subsequent call contains the combination of these 2 values

Answer: ["V2520PL", "V2522PL", "V2521PL", "V2500NP", "V2500NP"]

Can you please help me how to solve this in Jmeter using Groovy or any other technique Following is the code

      {  "body": {
"responseObject": [
  {
    "benefitInfo": [
      {
        "procedureCode": "V2520",
        "modifier": "PL",
        "usage": "Dress",
        "authorizationID": null,
        "description": "ContactLensDisposable",
        "id": "96",
        "coPayAmount": "25"
      },
      {
        "procedureCode": "V2522",
        "modifier": "PL",
        "usage": "Dress",
        "authorizationID": null,
        "description": "ContactLensDisposableBifocal",
        "id": "98",
        "coPayAmount": "25"
      },
      {
        "procedureCode": "V2521",
        "modifier": "PL",
        "usage": "Dress",
        "authorizationID": null,
        "description": "ContactLensDisposableToric",
        "id": "97",
        "coPayAmount": "25"
      },
      {
        "procedureCode": "V2500",
        "modifier": "NP",
        "usage": "Dress",
        "authorizationID": null,
        "description": "ContactLens (Non Plan)",
        "id": "89",
        "coPayAmount": "0"
      },
      {
        "procedureCode": "V2500",
        "modifier": "NP",
        "usage": "Dress",
        "authorizationID": null,
        "description": "ContactLensConventional (Non Plan)",
        "id": "157",
        "coPayAmount": "0"
      }
    ]
  }
]}}