D112221121133131333132322112331323331311221123223313131323233231   >>    D11222112113313133313232211233132333131122112322331313132323323   <<    D112221121133131333132322112331323331311221123223313131323233233   >>      D112221121133131333132322112331323331311221123223313131323233232   >>