00000"));     test(S("abcde"), 0, 0, "0000000000", S("0000000000"));     test(S("abcde"), 0, 0, "00000000000000000000", S("00000000000000000000"));     test(S("abcde"), 0, 0, "", S("abcde"));     test(S("abcde"), 0, 0, "00000", S("a00000bcde"));     test(S("abcde"), 0, 0, "0000000000", S("a0000000000bcde"));     test(S("abcde"), 0, 0, "00000000000000000000", S("a00000000000000000000bcde"));     test(S("abcde"), 0, 0, "", S("