C3132121111133313233121111331333133313331333133313331331121111113313232131   >>    C313212111113331323312111133133313331333133313331333133112111111331323213   <<    C3132121111133313233121111331333133313331333133313331331121111113313232133   >>      C3132121111133313233121111331333133313331333133313331331121111113313232132   >>