D112132322331322331311213231323132313231232322331323331333132313232212321   >>    D11213232233132233131121323132313231323123232233132333133313231323221232   <<    D112132322331322331311213231323132313231232322331323331333132313232212323   >>      D112132322331322331311213231323132313231232322331323331333132313232212322   >>