C2122121212121133131323331313113313233313231322331323113313231323221331   >>    C212212121212113313132333131311331323331323132233132311331323132322133   <<    C2122121212121133131323331313113313233313231322331323113313231323221333   >>      C2122121212121133131323331313113313233313231322331323113313231323221332   >>