|= 86, ||= 86×2+3, |||= 3|-58, IV= |||-|, V= IV+1+8×2, |+||+|||+IV+V=?, b=12
|= 86, ||= 172+3=175, |||= 3×86-58=258-58=200, IV= 200-86=114, V= 114+1+16=115+16=131
86×12=1032, 175×12=2100, 200×12=2400, 114×12=1368, 131×12=1572
1032+2100+2400+1368=6900(lei)