Arkady Kirill visit exhibition rare coin the coin locate row enumerate leave right 1 k coin lay obverse reverse uparkady Kirill photo coin photo contain segment neighboring coin Akrady interested obverse photo coin obverse on contrary Kirill interested reverse photo coin reverse upthe photo lose Arkady Kirill remember bound segment coin photo contain give information compute remainder division 1097 number way choose upper coin way Arkadys photo coin obverse Kirills photo coin reverse