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#include <bits/stdc++.h>
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using namespace std;
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int main() {
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//cin读入优化
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std::ios::sync_with_stdio(false);
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char c;
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cin >> c;
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int n = c;
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if (n % 2 == 1) cout << "YES";
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else
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cout << "NO";
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return 0;
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} |
