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- #include <bits/stdc++.h>
- using namespace std;
- using ll = long long;
- using ld = long double;
- void ext(string x, set<string> &a)
- {
- for (int i = 0; i < x.size(); i++)
- {
- string ax = x;
- ax.erase(ax.begin() + i);
- a.insert(ax);
- }
- }
- int main()
- {
- string x;
- cin >> x;
- set<string> a;
- ext(x, a);
- return 0;
- }
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