D11213232233132233131121323132313231232313232233132333133313132313211   >>    D1121323223313223313112132313231323123231323223313233313331313231321   <<    D11213232233132233131121323132313231232313232233132333133313132313213   >>      D11213232233132233131121323132313231232313232233132333133313132313212   >>