20 lines
279 B
C++
20 lines
279 B
C++
// Bit Strings
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#include<bits/stdc++.h>
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using namespace std;
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using ll = long long;
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ll MOD = 1e9 + 7;
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int main() {
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int n; cin >> n;
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ll ans = 1;
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for (int i{}; i < n; i++) {
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ans *= 2;
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ans %= MOD;
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}
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ans %= MOD;
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cout << ans;
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return 0;
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}
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