Symbol formats:
<CMDTY>CMYd..d - the Call option;
<CMDTY>PMYd..d - the Put option;
where is:
<CMDTY> - the commodity name;
C – the Call option indicator;
P - the Put option indicator;
M - the instrument expiration month, one of (F,G,H,J,K,M,N,Q,U,V,X,Z);
Y - the last digit of the instrument expiration year;
d..d – at least one digit of the option Strike price.