B331322121123313232233132112323331323133313223313331333133313231333221   >>    B33132212112331323223313211232333132313331322331333133313331323133322   <<    B331322121123313232233132112323331323133313223313331333133313231333223   >>      B331322121123313232233132112323331323133313223313331333133313231333222   >>