How to iterate nested cJSON object? i want to get(print) all keys and values from deviceData parent object in C. Its a cJson object.

```
 obj =     {      "command": "REPLACE_ROWS",
            "table": "Device.XXX",
            "deviceData": {
                    "device0": {
                      "DeviceName": "Filtered Device",
                        "MACAddress": "112233445599"
                    },
                    "device1": {
                        "DeviceName": "Filtered Device",
                        "MACAddress": "112233445599"
                    },
                    "device2": {
                        "DeviceName": "Filtered Device",
                        "MACAddress": "112233445599"
                    }
           }
    };

```

how to print keys of deviceData (ex device0 device1 device 2 and so on) in C. Thanks in advance.