#include using namespace std; int n, ans, a[200], b[200], dg[200], udg[200]; void dfs(int i) { if (i > n) { if (ans < 3) { for (int j = 1; j <= n; j++) { cout << a[j] << ' '; } cout << endl; } ans++; return; } for (int j = 1; j <= n; j++) { if (!b[j] && !dg[i + j] && !udg[n - j + i]) { a[i] = j; b[j] = dg[i + j] = udg[n - j + i] = true; dfs(i + 1); b[j] = dg[i + j] = udg[n - j + i] = false; } } } int main() { cin >> n; dfs(1); cout << ans << endl; return 0; }