D1313331322132333132333132312312323331323223313113313232233131232313231   >>    D131333132213233313233313231231232333132322331311331323223313123231323   <<    D1313331322132333132333132312312323331323223313113313232233131232313233   >>      D1313331322132333132333132312312323331323223313113313232233131232313232   >>