Ako imamo 10 cifara {1,2,3,4,5,6,7,8,9,0}
i 26 slova {A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z},
alternativno 22 {A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,R,S,T,U,V,Z} (bez Q,X,Y,W),
imamo kombinacija
[code:1:b8222a7ab5]za (BG) 123-ABC --- 10*10*10*26*26*26 = 17 576 000 kombinacija, alt...