testcases:
  - name: "testcase 1"
    inputs:
    - 1 : [[0]]
    output: 
    - 1 : [[0]]
  - name: "testcase 2"
    inputs:
    - 1: [[0,1],[1,1]]
    output:
    - 1 : [[0, 1], [1, 2]]
  - name: "testcase 3"
    inputs:
    - 1: [[0,0,1],[0,1,1],[1,0,1]]
    output:
    - 1 : [[0, 0, 1], [0, 1, 2], [1, 0, 1]]
  - name: "testcase 4"
    inputs:
    - 1: [[0,1,0,1], [1,0,1,0],[0,1,0,1],[1,0,1,0]]
    output:
    - 1 : [[0,1,0,1], [1,0,1,0],[0,1,0,1],[1,0,1,0]]
  - name: "testcase 5"
    inputs:
    - 1: [[0,1,0,1], [1,1,1,0],[0,1,1,1],[1,0,1,1]]
    output:
    - 1 : [[0, 1, 0, 1], [1, 2, 1, 0], [0, 1, 2, 1], [1, 0, 1, 2]]
  - name: "testcase 6"
    inputs:
    - 1 : [[0,0,0],[0,1,0],[0,0,0]]
    output: 
    - 1 : [[0,0,0],[0,1,0],[0,0,0]]
  - name: "testcase 7"
    inputs:
    - 1: [[0,0,0],[0,1,0],[1,1,1]]
    output:
    - 1 : [[0,0,0],[0,1,0],[1,2,1]]
  - name: "testcase 8"
    inputs:
    - 1: [[0,0,0],[0,1,0],[1,1,0]]
    output:
    - 1 : [[0, 0, 0], [0, 1, 0], [1, 1, 0]]
  - name: "testcase 9"
    inputs:
    - 1: [[1,1,1,1], [1,0,1,0],[1,1,1,1],[0,0,0,0]]
    output:
    - 1 : [[2, 1, 2, 1], [1, 0, 1, 0], [1, 1, 1, 1], [0, 0, 0, 0]]
  - name: "testcase 10"
    inputs:
    - 1: [[1,1,1,1], [1,1,1,0],[1,1,1,1],[1,0,1,1]]
    output:
    - 1 : [[4, 3, 2, 1], [3, 2, 1, 0], [2, 1, 2, 1], [1, 0, 1, 2]]