INCREASE VOLUME
python volume.py i 10
DECREASE VOLUME
python volume.py d 10
INCREASE VOLUME BY *
python volume.py i
INCREASE VOLUME TO *
python volume.py s
DECREASE VOLUME BY *
python volume.py d
DECREASE VOLUME TO *
python volume.py s
SET VOLUME TO *
python volume.py s
WHAT IS * VOLUME
python volume.py g