C21221212121211331313233313131133132333132313223313231322333231   >>    C2122121212121133131323331313113313233313231322331323132233323   <<    C21221212121211331313233313131133132333132313223313231322333233   >>      C21221212121211331313233313131133132333132313223313231322333232   >>