What is the total age of the company's Chief Executive Officer and Chief Financial Officer?
{"Herbjrn Hansson": {"Age": 72, "Position": "Chairman, Chief Executive Officer, President and Director"}, "David Workman": {"Age": 58, "Position": "Director"}, "Richard H. K. Vietor": {"Age": 74, "Position": "Director"}, "Alexander Hansson": {"Age": 38, "Position": "Director"}, "Jim Kelly": {"Age": 66, "Position": "Vice Chairman, Director and Audit Committee Member"}, "Bjrn Giaever": {"Age": 52, "Position": "Chief Financial Officer"}}
ceo_age = df["Herbjrn Hansson"]["Age"]
cfo_age = df["Bjrn Giaever"]["Age"]
answer = ( ceo_age + cfo_age )