testcases:
  - name: "testcase 1"
    inputs:
    - 1 : "10"
    - 2 : "11"
    output: 
    - 1 : "101"
  - name: "testcase 2"
    inputs:
    - 1: "1111"
    - 2: "1011"
    output:
    - 1 : "11010"
  - name: "testcase 3"
    inputs:
    - 1: "101010"
    - 2: "110110"
    output:
    - 1 : "1100000"
  - name: "testcase 4"
    inputs:
    - 1: "1111"
    - 2: "111"
    output:
    - 1 : "10110"
  - name: "testcase 5"
    inputs:
    - 1: "101"
    - 2: "1101"
    output:
    - 1 : "10010"
  - name: "testcase 6"
    inputs:
    - 1 : "1"
    - 2 : "1"
    output: 
    - 1 : "10"
  - name: "testcase 7"
    inputs:
    - 1: "0"
    - 2: "0"
    output:
    - 1 : "0"
  - name: "testcase 8"
    inputs:
    - 1: "110010"
    - 2: "11110"
    output:
    - 1 : "1010000"
  - name: "testcase 9"
    inputs:
    - 1: "10000"
    - 2: "1000"
    output:
    - 1 : "11000"
  - name: "testcase 10"
    inputs:
    - 1: "101010101011011111011001101010"
    - 2: "111000101011000110101011000011"
    output:
    - 1 : "1100011010110100110000100101101"