C3132121111133313233121111331333133313331333133313331333133313113313132322221   >>    C313212111113331323312111133133313331333133313331333133313331311331313232222   <<    C3132121111133313233121111331333133313331333133313331333133313113313132322223   >>      C3132121111133313233121111331333133313331333133313331333133313113313132322222   >>