---
ch-1:
  - function: uniquesum
    arguments:
      - 2
      - 1
      - 3
      - 2
    result: 4
  - arguments:
      - 1
      - 1
      - 1
      - 1
    result: 0
  - arguments:
      - 2
      - 1
      - 3
      - 4
    result: 10
ch-2:
  - function: emptyarray
    arguments:
      - 3
      - 4
      - 2
    result: 5
  - arguments:
      - 1
      - 2
      - 3
    result: 3