testcases:
  - name: "testcase 1"
    inputs:
    - 1 : "abcd"
    output: 
    - 1 : ["abcd", "abdc", "acbd", "acdb", "adcb", "adbc", "bacd", "badc", "bcad", "bcda", "bdca", "bdac", "cbad", "cbda", "cabd", "cadb", "cdab", "cdba", "dbca", "dbac", "dcba", "dcab", "dacb", "dabc"]

  - name: "testcase 2"
    inputs:
    - 1: "bad"
    output:
    - 1 : ["bad", "bda", "abd", "adb", "dab", "dba"]

  - name: "testcase 3"
    inputs:
    - 1: "ab"
    output:
    - 1: ["ab", "ba"]

  - name: "testcase 4"
    inputs:
    - 1: "xyz"
    output:
    - 1: ["xzy", "xyz", "zxy", "zyx", "yzx", "yxz"]

  - name: "testcase 5"
    inputs:
    - 1: "a"
    output:
    - 1: ["a"]