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