D33211132313231333132233131113231333131323223313231213231323311   >>    D3321113231323133313223313111323133313132322331323121323132331   <<    D33211132313231333132233131113231333131323223313231213231323313   >>      D33211132313231333132233131113231333131323223313231213231323312   >>