maps would be helpful
See section 25
Arkhangelsk Region - (19)
Kaliningrad Region - (20)
Karelia, Republic of - (21)
Komi, Republic of - (22)
Leningrad Region - (23)
Murmansk Region - (24)
Nenets Autonomous District - (25)
Novgorod Region - (26)
Pskov Region - (27)
St. Petersburg City - (28)
Vologda Region - (29)