#include using namespace std; int c[50],b[50],ans[50]; mt19937 mt(chrono::steady_clock::now().time_since_epoch().count()); uniform_int_distribution<> dis(0, 1e9); void solve(){ } signed main(){ int n; cin>>n; int x,big=0; for(int a,i=0;i>a; b[i]=a; ans[i]=i; } int ok=0; for(int i=0;i<500000;i++){ ok=0; shuffle(ans,ans+n,mt); for(int j=0;j