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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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int n;
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cin >> n;
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if (n >= 10 && n <= 99) cout << 1 << endl;
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else cout << 0 << endl;
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return 0;
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} |
