C2122121212121133131323331313113313233313231322331323223311211331   >>    C212212121212113313132333131311331323331323132233132322331121133   <<    C2122121212121133131323331313113313233313231322331323223311211333   >>      C2122121212121133131323331313113313233313231322331323223311211332   >>