C3132121111133313233121111331333133313331333133313331333133313113313231322221   >>    C313212111113331323312111133133313331333133313331333133313331311331323132222   <<    C3132121111133313233121111331333133313331333133313331333133313113313231322223   >>      C3132121111133313233121111331333133313331333133313331333133313113313231322222   >>