D331311321221323131323331323232132313232233131333132333131232322121   >>    D33131132122132313132333132323213231323223313133313233313123232212   <<    D331311321221323131323331323232132313232233131333132333131232322123   >>      D331311321221323131323331323232132313232233131333132333131232322122   >>