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581 changed files with 2846 additions and 472 deletions
71
codeforces/529/1095a.cc
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71
codeforces/529/1095a.cc
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#include <bits/stdc++.h> // {{{
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#include <version>
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#ifdef __cpp_lib_ranges_enumerate
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#include <ranges>
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namespace rv = std::views;
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namespace rs = std::ranges;
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#endif
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#pragma GCC optimize("O2,unroll-loops")
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#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
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using namespace std;
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using i16 = int16_t;
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using u16 = uint16_t;
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using i32 = int32_t;
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using u32 = uint32_t;
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using i64 = int64_t;
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using u64 = uint64_t;
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using f64 = double;
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using f128 = long double;
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#if __cplusplus >= 202002L
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template <typename T>
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constexpr T MIN = std::numeric_limits<T>::min();
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template <typename T>
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constexpr T MAX = std::numeric_limits<T>::max();
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#endif
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#ifdef LOCAL
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#define db(...) std::print(__VA_ARGS__)
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#define dbln(...) std::println(__VA_ARGS__)
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#else
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#define db(...)
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#define dbln(...)
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#endif
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// }}}
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void solve() {
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u32 n;
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cin >> n;
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string s;
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cin >> s;
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u32 index = 0;
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for (u32 i = 1; index < n; ++i) {
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print("{}", s[index]);
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index += i;
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}
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println();
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}
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int main() { // {{{
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std::cin.exceptions(std::cin.failbit);
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#ifdef LOCAL
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std::cerr.rdbuf(std::cout.rdbuf());
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std::cout.setf(std::ios::unitbuf);
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std::cerr.setf(std::ios::unitbuf);
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#else
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std::cin.tie(nullptr)->sync_with_stdio(false);
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#endif
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u32 tc = 1;
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// std::cin >> tc;
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for (u32 t = 0; t < tc; ++t) {
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solve();
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}
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return 0;
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}
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// }}}
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2
codeforces/529/io/1095a.1.cpin
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2
codeforces/529/io/1095a.1.cpin
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6
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baabbb
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1
codeforces/529/io/1095a.1.cpout
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1
codeforces/529/io/1095a.1.cpout
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@ -0,0 +1 @@
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bab
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2
codeforces/529/io/1095a.2.cpin
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2
codeforces/529/io/1095a.2.cpin
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10
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ooopppssss
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1
codeforces/529/io/1095a.2.cpout
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1
codeforces/529/io/1095a.2.cpout
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oops
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2
codeforces/529/io/1095a.3.cpin
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2
codeforces/529/io/1095a.3.cpin
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@ -0,0 +1,2 @@
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1
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z
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1
codeforces/529/io/1095a.3.cpout
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1
codeforces/529/io/1095a.3.cpout
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@ -0,0 +1 @@
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z
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2
codeforces/529/io/1095b.1.cpin
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2
codeforces/529/io/1095b.1.cpin
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4
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1 3 3 7
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1
codeforces/529/io/1095b.1.cpout
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1
codeforces/529/io/1095b.1.cpout
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2
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2
codeforces/529/io/1095b.2.cpin
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2
codeforces/529/io/1095b.2.cpin
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@ -0,0 +1,2 @@
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2
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1 100000
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1
codeforces/529/io/1095b.2.cpout
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1
codeforces/529/io/1095b.2.cpout
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@ -0,0 +1 @@
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0
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1
codeforces/529/io/1095c.1.cpin
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1
codeforces/529/io/1095c.1.cpin
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@ -0,0 +1 @@
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9 4
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2
codeforces/529/io/1095c.1.cpout
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2
codeforces/529/io/1095c.1.cpout
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YES
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1 2 2 4
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1
codeforces/529/io/1095c.2.cpin
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1
codeforces/529/io/1095c.2.cpin
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8 1
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2
codeforces/529/io/1095c.2.cpout
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2
codeforces/529/io/1095c.2.cpout
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YES
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8
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1
codeforces/529/io/1095c.3.cpin
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1
codeforces/529/io/1095c.3.cpin
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5 1
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1
codeforces/529/io/1095c.3.cpout
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1
codeforces/529/io/1095c.3.cpout
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NO
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1
codeforces/529/io/1095c.4.cpin
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1
codeforces/529/io/1095c.4.cpin
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3 7
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1
codeforces/529/io/1095c.4.cpout
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1
codeforces/529/io/1095c.4.cpout
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@ -0,0 +1 @@
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NO
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6
codeforces/529/io/1095d.1.cpin
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6
codeforces/529/io/1095d.1.cpin
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5
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3 5
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1 4
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2 4
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1 5
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2 3
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1
codeforces/529/io/1095d.1.cpout
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1
codeforces/529/io/1095d.1.cpout
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3 2 4 1 5
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4
codeforces/529/io/1095d.2.cpin
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4
codeforces/529/io/1095d.2.cpin
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3
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2 3
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3 1
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1 2
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1
codeforces/529/io/1095d.2.cpout
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1
codeforces/529/io/1095d.2.cpout
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3 1 2
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2
codeforces/529/io/1095e.1.cpin
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2
codeforces/529/io/1095e.1.cpin
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6
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(((())
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1
codeforces/529/io/1095e.1.cpout
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1
codeforces/529/io/1095e.1.cpout
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3
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2
codeforces/529/io/1095e.2.cpin
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2
codeforces/529/io/1095e.2.cpin
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6
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()()()
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1
codeforces/529/io/1095e.2.cpout
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1
codeforces/529/io/1095e.2.cpout
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0
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2
codeforces/529/io/1095e.3.cpin
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2
codeforces/529/io/1095e.3.cpin
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1
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)
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1
codeforces/529/io/1095e.3.cpout
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1
codeforces/529/io/1095e.3.cpout
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0
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2
codeforces/529/io/1095e.4.cpin
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2
codeforces/529/io/1095e.4.cpin
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8
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)))(((((
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1
codeforces/529/io/1095e.4.cpout
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1
codeforces/529/io/1095e.4.cpout
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0
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4
codeforces/529/io/1095f.1.cpin
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codeforces/529/io/1095f.1.cpin
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3 2
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1 3 3
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2 3 5
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2 1 1
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1
codeforces/529/io/1095f.1.cpout
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1
codeforces/529/io/1095f.1.cpout
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5
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2
codeforces/529/io/1095f.2.cpin
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2
codeforces/529/io/1095f.2.cpin
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4 0
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1 3 3 7
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1
codeforces/529/io/1095f.2.cpout
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1
codeforces/529/io/1095f.2.cpout
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16
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6
codeforces/529/io/1095f.3.cpin
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6
codeforces/529/io/1095f.3.cpin
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5 4
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1 2 3 4 5
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1 2 8
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1 3 10
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1 4 7
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1 5 15
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1
codeforces/529/io/1095f.3.cpout
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1
codeforces/529/io/1095f.3.cpout
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18
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