D1212121221323132313232332313232233132333132322121122112323132323321   >>    D121212122132313231323233231323223313233313232212112211232313232332   <<    D1212121221323132313232332313232233132333132322121122112323132323323   >>      D1212121221323132313232332313232233132333132322121122112323132323322   >>