use strict;
use warnings;

my $a = <>;
my $b = <>;
chomp $a;
chomp $b;

$a =~ s/^.*(.)$/$1/;
$b =~ s/^.*(.)$/$1/;

if ($a eq "1" and $b eq "1") {
    print "Odd\n";
} else {
    print "Even\n";
}