testcases:
  - name: "testcase 1"
    inputs:
    - 1 : [[2, 3], [1, 3], [1, 2]]
    output: 
    - 1 : [[2, 3], [1, 3], [1, 2]]
  - name: "testcase 2"
    inputs:
    - 1 : [[2, 5], [1, 3], [2, 4], [3, 5], [1, 4]]
    output: 
    - 1 : [[2, 5], [1, 3], [2, 4], [3, 5], [1, 4]]
  - name: "testcase 3"
    inputs:
    - 1 : [[2], [1]]
    output: 
    - 1 : [[2], [1]]
  - name: "testcase 4"
    inputs:
    - 1 : [[2, 6], [1, 3], [2, 4], [3, 5], [4, 6], [1, 5]]
    output: 
    - 1 : [[2, 6], [1, 3], [2, 4], [3, 5], [4, 6], [1, 5]]
  - name: "testcase 5"
    inputs:
    - 1 : [[2, 8], [1, 3], [2, 4], [3, 5], [4, 6], [5, 7], [6, 8], [1, 7]]
    output: 
    - 1 : [[2, 8], [1, 3], [2, 4], [3, 5], [4, 6], [5, 7], [6, 8], [1, 7]]