B23112323331323132313223313331323331323223313231323132322331211   >>    B2311232333132313231322331333132333132322331323132313232233121   <<    B23112323331323132313223313331323331323223313231323132322331213   >>      B23112323331323132313223313331323331323223313231323132322331212   >>