C3132121111133313233121111331333133313331333133313331333133323211331   >>    C313212111113331323312111133133313331333133313331333133313332321133   <<    C3132121111133313233121111331333133313331333133313331333133323211333   >>      C3132121111133313233121111331333133313331333133313331333133323211332   >>