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-- v2.13 CORPUS-IV: reverse/upper/lower on edges. print(string.reverse("abc"), string.reverse(""), string.reverse("x")) print(string.upper("MiXeD 123 !"), string.lower("MiXeD 123 !")) print(("ß"):upper() == "ß") print(#string.reverse("ab\0cd")) print(string.upper(""))