B33113313132313113313223313331323133313223313231333132313331333132322132212131   >>    B3311331313231311331322331333132313331322331323133313231333133313232213221213   <<    B33113313132313113313223313331323133313223313231333132313331333132322132212133   >>      B33113313132313113313223313331323133313223313231333132313331333132322132212132   >>