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#include <cstdio>
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#include <algorithm>
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using namespace std;
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int main()
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{
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int x, a;
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char buf[7];
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while (~scanf("%d", &x))
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{
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for (a = x + 1;; a++)
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{
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sprintf(buf, "%d", a);
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sort(buf, buf + 4);
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if (unique(buf, buf + 4) == buf + 4)
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break;
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}
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printf("%d\n", a);
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}
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return 0;
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} |
