C3132121111133313233121111331333133313331333133313331333133313112211231231   >>    C313212111113331323312111133133313331333133313331333133313331311221123123   <<    C3132121111133313233121111331333133313331333133313331333133313112211231233   >>      C3132121111133313233121111331333133313331333133313331333133313112211231232   >>