D33132211231323132313232332313232233132313232213331323221211211   >>    D3313221123132313231323233231323223313231323221333132322121121   <<    D33132211231323132313232332313232233132313232213331323221211213   >>      D33132211231323132313232332313232233132313232213331323221211212   >>