B331322121123313232233132112323331323133313223313331333132313231323133112131   >>    B33132212112331323223313211232333132313331322331333133313231323132313311213   <<    B331322121123313232233132112323331323133313223313331333132313231323133112133   >>      B331322121123313232233132112323331323133313223313331333132313231323133112132   >>