Question:
Who was the head of state of Republic of Artsakh in Oct, 2022?

Context:
 Leonard Petrosyan is the head of the state of Republic of Artsakh from Mar, 1997 to Sep, 1997. 
 Bako Sahakyan is the head of the state of Republic of Artsakh from Sep, 2007 to May, 2020. 
 Arayik Harutyunyan is the head of the state of Republic of Artsakh from May, 2020 to Dec, 2022. 
 Arkadi Ghukasyan is the head of the state of Republic of Artsakh from Sep, 1997 to Sep, 2007. 
 Robert Kocharyan is the head of the state of Republic of Artsakh from Dec, 1994 to Mar, 1997.

Answer:
Arayik Harutyunyan