C3132121111133313233121111331333133313331333133313331333133313233221211   >>    C313212111113331323312111133133313331333133313331333133313331323322121   <<    C3132121111133313233121111331333133313331333133313331333133313233221213   >>      C3132121111133313233121111331333133313331333133313331333133313233221212   >>