B33113313132313113313223313331323331323321133133313331333132311331323123221211   >>    B3311331313231311331322331333132333132332113313331333133313231133132312322121   <<    B33113313132313113313223313331323331323321133133313331333132311331323123221213   >>      B33113313132313113313223313331323331323321133133313331333132311331323123221212   >>