C3132121111133313233121111331333133313331333133313331333133313232213211231   >>    C313212111113331323312111133133313331333133313331333133313331323221321123   <<    C3132121111133313233121111331333133313331333133313331333133313232213211233   >>      C3132121111133313233121111331333133313331333133313331333133313232213211232   >>