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- #include <ext/pb_ds/assoc_container.hpp>
- #include <ext/pb_ds/tree_policy.hpp>
- #include <bits/stdc++.h>
- using namespace std;
- using namespace __gnu_pbds;
- template <class T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
- void PlayGround() {
- }
- int main() {
- ios_base::sync_with_stdio(false);
- cin.tie(NULL);
- PlayGround();
- return 0;
- }
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