B331322121123313232233132112323331323133313223313331333131121133132311231   >>    B33132212112331323223313211232333132313331322331333133313112113313231123   <<    B331322121123313232233132112323331323133313223313331333131121133132311233   >>      B331322121123313232233132112323331323133313223313331333131121133132311232   >>