testcases:
  - name: "testcase 1"
    inputs:
    - 1 : [100, 50, 200, 25, 75, 300, 10, 350, 15]
    output:
    - 1 : [[350],[25],[50,15],[100,75,300],[200],[10]]

  - name: "testcase 2"
    inputs:
    - 1 : [20, 40, 50, 90, 67, 94]
    output:
    - 1 : [[90],[40],[20,67,94],[50]]

  - name: "testcase 3"
    inputs:
    - 1 : [10, 23, 45, 25, 46]
    output:
    - 1 : [[25], [23], [10, 46], [45]]

  - name: "testcase 4"
    inputs:
    - 1 : [9, 7, null, null, 1, 8, 10, null, 12] 
    output:
    - 1 : [[7,8],[9,1,12],[10]]

  - name: "testcase 5"
    inputs:
    - 1 : [3, 2, 3, null, 3, null, 1]
    output:
    - 1 : [[2],[3,3],[3],[1]]