D12121212213231323132323323132322331323132333133313132312311321   >>    D1212121221323132313232332313232233132313233313331313231231132   <<    D12121212213231323132323323132322331323132333133313132312311323   >>      D12121212213231323132323323132322331323132333133313132312311322   >>