D12121212213231323132323323132322331323331323222333132313231333132212111   >>    D1212121221323132313232332313232233132333132322233313231323133313221211   <<    D12121212213231323132323323132322331323331323222333132313231333132212113   >>      D12121212213231323132323323132322331323331323222333132313231333132212112   >>