#include using namespace std; typedef long long ll; int main() { int n; cin>>n; int cnt[101]{}; for (int i=0;i>a; cnt[a]++; } ll ans=0; for (int i=1;i<=100;i++) for (int j=i+1;j<=100;j++) for (int k=j+1;k<=100;k++) ans += cnt[i]*cnt[j]*cnt[k]; cout<