---
ch-1:
  - function: separatedigits
    arguments:
      - 1
      - 34
      - 5
      - 6
    result:
      - 1
      - 3
      - 4
      - 5
      - 6
  - arguments:
      - 1
      - 24
      - 51
      - 60
    result:
      - 1
      - 2
      - 4
      - 5
      - 1
      - 6
      - 0
ch-2:
  - function: prefixwords
    arguments:
      - - pay
        - attention
        - practice
        - attend
      - at
    multiarg: true
    result: 2
  - arguments:
      - - janet
        - julia
        - java
        - javascript
      - ja
    multiarg: true
    result: 3