Print the hollow diamond pattern

Here given code implementation process.

Given a size N which indicates star symbol on each side, Our goal is to print the hollow diamond pattern of specified size. For example.

 Given n : 5
          ✰
        ✰   ✰
      ✰       ✰
    ✰           ✰
  ✰               ✰
    ✰           ✰
      ✰       ✰
        ✰   ✰
          ✰

 Given n : 8
                ✰
              ✰   ✰
            ✰       ✰
          ✰           ✰
        ✰               ✰
      ✰                   ✰
    ✰                       ✰
  ✰                           ✰
    ✰                       ✰
      ✰                   ✰
        ✰               ✰
          ✰           ✰
            ✰       ✰
              ✰   ✰
                ✰

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