testcases:
  - name: "testcase 1"
    inputs:
    - 1 : [100, 50, 200, 25, 75, 350]
    output: 
    - 1 : [100, 50, 200, 25, 75, 350]
  - name: "testcase 2"
    inputs:
    - 1 : [100, 75, 200, 50, 350, 25]
    output: 
    - 1 : [100, 75, 200, 50, 350, 25]
  - name: "testcase 3"
    inputs:
    - 1 : [1, null, 2, null, 3, null, 4, null, 5]
    output: 
    - 1 : [1, null, 2, null, 3, null, 4, null, 5]
  - name: "testcase 4"
    inputs:
    - 1 : [100]
    output: 
    - 1 : [100]
  - name: "testcase 5"
    inputs:
    - 1 : []
    output: 
    - 1 : []