B23112323331323132313223313331323331323223313231323133313331323222211   >>    B2311232333132313231322331333132333132322331323132313331333132322221   <<    B23112323331323132313223313331323331323223313231323133313331323222213   >>      B23112323331323132313223313331323331323223313231323133313331323222212   >>