testcases:
  - name: "testcase 1"
    inputs:
    - 1 : [6, 7, 1, 2, 3, 4, 5]
    - 2 : 3
    output: 
    - 1 : 4
  - name: "testcase 2"
    inputs:
    - 1: [6, 7, 1, 2, 3, 4, 5]
    - 2: 6
    output:
    - 1 : 0
  - name: "testcase 3"
    inputs:
    - 1: [4, 5, 6, 1, 2, 3]
    - 2: 3
    output:
    - 1 : 5
  - name: "testcase 4"
    inputs:
    - 1: [4, 5, 6, 1, 2, 3]
    - 2: 6
    output:
    - 1 : 2
  - name: "testcase 5"
    inputs:
    - 1: [4]
    - 2: 1
    output:
    - 1 : -1