get_str(String) :-
 current_input(Input),
 read_string(Input," \n","",_,String).

get_num(Number) :-
 get_str(String),
 number_string(Number,String).

main :-
 get_num(A),get_num(B),P is A*B mod 2,
 (P=0 -> writeln("Even") ; writeln("Odd")).