#include #include using std::cin; using std::cout; const char endl = '\n'; const int N = 10; const int mod = 10000; class Matrix { private: int data[N][N]; public: Matrix() { memset(data, 0x00, sizeof(data)); } int* operator[](int i) { return data[i]; } Matrix operator*(Matrix b) const { Matrix c; int n = 2; for (int i = 1; i <= n; i++) { for (int j = 1; j <= n; j++) { for (int k = 1; k <= n; k++) { c[i][j] = (c[i][j] + data[i][k] * b[k][j] % mod) % mod; } } } return c; } } base, ans; Matrix binpow(Matrix a, int k) { Matrix res; res[1][1] = 1; res[1][2] = 1; while (k) { if (k & 1) res = res * a; a = a * a; k >>= 1; } return res; } int n; int main() { std::ios::sync_with_stdio(false); while (cin >> n, ~n) { if (n <= 2) { cout << !!n << endl; continue; } Matrix tmp; tmp[1][1] = 1, tmp[1][2] = 1; tmp[2][1] = 1, tmp[2][2] = 0; cout << binpow(tmp, n - 2)[1][1] << endl; } return 0; }