C1111133313331323223313331333133313331323131313121111331333133313332212331   >>    C111113331333132322331333133313331333132313131312111133133313331333221233   <<    C1111133313331323223313331333133313331323131313121111331333133313332212333   >>      C1111133313331323223313331333133313331323131313121111331333133313332212332   >>