testcases:
  - name: "testcase 1"
    inputs:
    - 1 : 2147483646
    output: 
    - 1 : False
  - name: "testcase 2"
    inputs:
    - 1: 1
    output:
    - 1 : True
  - name: "testcase 3"
    inputs:
    - 1 : 19
    output: 
    - 1 : True
  - name: "testcase 4"
    inputs:
    - 1: 8
    output:
    - 1 : False
  - name: "testcase 5"
    inputs:
    - 1: 7
    output:
    - 1 : True