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#include <bits/stdc++.h>
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using namespace std;
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int n;
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int main() {
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cin >> n;
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double cnt = 0.2;
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int sum = 0;
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for (int i = 1;; i++) {
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if (cnt > n) {
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printf("%d", sum);
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break;
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}
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cnt *= 2;
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sum++;
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}
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return 0;
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} |
