That's a track of the Soviet times; suppose in such situations you've been asked for 'Hryvnya'(s) really. At Sep/2001 you can trade your 1 (ukrainian)Hryvnya for 6 (russian) Roubles and 1 (american) Dollar stands for 5 (ukranian) Hryvnya.
Before visiting Crimea check for Hryvnya's value. Roubles and dollars may be exchanged freely at exchange boards of banks and at special on-street kiosks.
