D1313331322132333132333131311331323133313231123313223313232212331   >>    D131333132213233313233313131133132313331323112331322331323221233   <<    D1313331322132333132333131311331323133313231123313223313232212333   >>      D1313331322132333132333131311331323133313231123313223313232212332   >>