B33113313132313113313223313331323132313331313232233131121133132313231322112131   >>    B3311331313231311331322331333132313231333131323223313112113313231323132211213   <<    B33113313132313113313223313331323132313331313232233131121133132313231322112133   >>      B33113313132313113313223313331323132313331313232233131121133132313231322112132   >>