D1212121221323132313232332313232233131133131323223313231323132121121   >>    D121212122132313231323233231323223313113313132322331323132313212112   <<    D1212121221323132313232332313232233131133131323223313231323132121123   >>      D1212121221323132313232332313232233131133131323223313231323132121122   >>