testcases:
  - name: "testcase 1"
    inputs:
    - 1 : [[1, 2], [3, 4], [5, 8], [9, 15]]
    - 2 : [2, 5]
    output: 
    - 1 : [[1, 8], [9, 15]]

  - name: "testcase 2"
    inputs:
    - 1: [[1, 6], [8, 9], [10, 15], [16, 18]]
    - 2: [9, 10]
    output:
    - 1 : [[1, 6], [8, 15], [16, 18]]

  - name: "testcase 3"
    inputs:
    - 1 : [[1, 2], [3, 4], [5, 8], [9, 15]]
    - 2 : [16, 17]
    output: 
    - 1 : [[1, 2], [3, 4], [5, 8], [9, 15], [16,17]]

  - name: "testcase 4"
    inputs:
    - 1: [[1, 4], [5, 6], [7, 8], [9, 10]]
    - 2: [1, 5]
    output:
    - 1 : [[1, 6], [7, 8], [9, 10]]
  - name: "testcase 5"
    inputs:
    - 1: [[1, 3], [4, 6], [7, 8], [9, 10]]
    - 2: [1, 10]
    output:
    - 1 : [[1,10]]