B331322121123313232233132112323331323133313223313331333132313231323133112311321   >>    B33132212112331323223313211232333132313331322331333133313231323132313311231132   <<    B331322121123313232233132112323331323133313223313331333132313231323133112311323   >>      B331322121123313232233132112323331323133313223313331333132313231323133112311322   >>