testcases:
  - name: "testcase 6"
    inputs:
    - 1 : [[1]]
    output: 
    - 1 : [1]
  - name: "testcase 7"
    inputs:
    - 1: [[6], [2]]
    output:
    - 1 : [6, 2]
  - name: "testcase 8"
    inputs:
    - 1: [[2, 14, 8], [12, 7, 14]]
    output:
    - 1 : [2, 14, 8, 14, 7, 12]
  - name: "testcase 9"
    inputs:
    - 1: [[3, 1, 1], [15, 12, 13], [4, 14, 12], [10, 5, 11]]
    output:
    - 1 : [3, 1, 1, 13, 12, 11, 5, 10, 4, 15, 12, 14]
  - name: "testcase 10"
    inputs:
    - 1: [[10, 1, 14, 11, 14], [13, 4, 8, 2, 13], [10, 19, 1, 6, 8], [20, 10, 8, 2, 12], [15, 6, 8, 8, 18]]
    output:
    - 1 : [10, 1, 14, 11, 14, 13, 8, 12, 18, 8, 8, 6, 15, 20, 10, 13, 4, 8, 2, 6, 2, 8, 10, 19, 1]
  - name: "testcase 11"
    inputs:
    - 1: [[19, 12, 1, 13, 14, 4], [1, 2, 16, 2, 2, 5], [11, 20, 13, 17, 20, 7], [6, 15, 11, 10, 4, 4], [1, 18, 6, 16, 3, 19]]
    output:
    - 1 : [19, 12, 1, 13, 14, 4, 5, 7, 4, 19, 3, 16, 6, 18, 1, 6, 11, 1, 2, 16, 2, 2, 20, 4, 10, 11, 15, 20, 13, 17]
  - name: "testcase 12"
    inputs:
    - 1: [[17, 17, 18,  9, 15, 15], [7, 9, 2, 19, 5, 11], [14, 10, 6, 12, 13, 8], [5, 19, 2, 14, 12,  8], [13, 18, 13, 9, 9, 16], [20, 1, 6, 2, 2, 11], [17, 16, 4, 11, 18, 2]]
    output:
    - 1 : [17, 17, 18, 9, 15, 15, 11, 8, 8, 16, 11, 2, 18, 11, 4, 16, 17, 20, 13, 5, 14, 7, 9, 2, 19, 5, 13, 12, 9, 2, 2, 6, 1, 18, 19, 10, 6, 12, 14, 9, 13, 2]