D2313133313133313133112323132313231333132333132213233313231333132233132221   >>    D231313331313331313311232313231323133313233313221323331323133313223313222   <<    D2313133313133313133112323132313231333132333132213233313231333132233132223   >>      D2313133313133313133112323132313231333132333132213233313231333132233132222   >>