C3132121111133313233121111331333133313331333133313331333133313113313232211331   >>    C313212111113331323312111133133313331333133313331333133313331311331323221133   <<    C3132121111133313233121111331333133313331333133313331333133313113313232211333   >>      C3132121111133313233121111331333133313331333133313331333133313113313232211332   >>