D1323132321113123231323132313232321323132313311213232233132333111   >>    D132313232111312323132313231323232132313231331121323223313233311   <<    D1323132321113123231323132313232321323132313311213232233132333113   >>      D1323132321113123231323132313232321323132313311213232233132333112   >>