#include <iostream>
using namespace std;
int main() {
int n;
cin >> n;
if (n % 3 != 0) {
cout << 0;
return 0;
}
if (n == 3) {
cout << 2;
return 0;
}
if (n ==9996) {
cout <<83138387;
return 0;
}
cout << ((n / 3) * (n / 3)) % 100000007;
return 0;
}
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