B33113313132313113313223313331323331323321311331323223313231211   >>    B3311331313231311331322331333132333132332131133132322331323121   <<    B33113313132313113313223313331323331323321311331323223313231213   >>      B33113313132313113313223313331323331323321311331323223313231212   >>