testcases:
  - name: "testcase 1"
    inputs:
    - 1 : "abab"
    - 2 : ab
    output: 
    - 1 : [0, 1, 2]
  - name: "testcase 2"
    inputs:
    - 1: cbaebabacd
    - 2: abc
    output:
    - 1 : [0, 6]
  - name: "testcase 3"
    inputs:
    - 1 : efc
    - 2 : ceffec
    output: 
    - 1 : []
  - name: "testcase 4"
    inputs:
    - 1: acttacttca
    - 2: cat
    output:
    - 1 : [0,3,4,7]
  - name: "testcase 5"
    inputs:
    - 1 : bro
    - 2 : bro
    output: 
    - 1 : [0]