D112132322331322331311213231323132313231232322331323331333132313121111   >>    D11213232233132233131121323132313231323123232233132333133313231312111   <<    D112132322331322331311213231323132313231232322331323331333132313121113   >>      D112132322331322331311213231323132313231232322331323331333132313121112   >>