D132311233131333131322331323121323132333132333132233131323221221   >>    D13231123313133313132233132312132313233313233313223313132322122   <<    D132311233131333131322331323121323132333132333132233131323221223   >>      D132311233131333131322331323121323132333132333132233131323221222   >>