---
ch-1:
  - function: maximumpairs
    arguments:
      - ab
      - de
      - ed
      - bc
    result: 1
  - arguments:
      - aa
      - ba
      - cd
      - ed
    result: 0
  - arguments:
      - uv
      - qp
      - st
      - vu
      - mn
      - pq
    result: 2
ch-2:
  - function: mergestrings
    multiarg: true
    arguments:
      - abcd
      - "1234"
    result: "a1b2c3d4"
  - multiarg: true
    arguments:
      - abc
      - "12345"
    result: "a1b2c345"
  - multiarg: true
    arguments:
      - abcde
      - "123"
    result: "a1b2c3de"