testcases:
  - name: "testcase 1"
    inputs:
    - 1 : [[2, 1, 1], [1, 1, 0], [0, 1, 1]]
    output: 
    - 1 : 4

  - name: "testcase 2"
    inputs:
    - 1: [[2, 1, 1], [0, 1, 1], [1, 0, 1]]
    output:
    - 1 : -1

  - name: "testcase 3"
    inputs:
    - 1 : [[0, 2]]
    output: 
    - 1 : 0

  - name: "testcase 4"
    inputs:
    - 1: [[0, 1, 2], [1, 0, 2], [0, 2, 1]]
    output:
    - 1 : -1

  - name: "testcase 5"
    inputs:
    - 1 : [[0,1,1],[1,0,1],[0,1,1]]
    output: 
    - 1 : -1