D121211111111233131333131333132311313231323223313231323122132323221   >>    D12121111111123313133313133313231131323132322331323132312213232322   <<    D121211111111233131333131333132311313231323223313231323122132323223   >>      D121211111111233131333131333132311313231323223313231323122132323222   >>