D1121323223313223313112132313231323123231323223313233313331313231312112331   >>    D112132322331322331311213231323132312323132322331323331333131323131211233   <<    D1121323223313223313112132313231323123231323223313233313331313231312112333   >>      D1121323223313223313112132313231323123231323223313233313331313231312112332   >>