#include using namespace std; #define IOS ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); #define endl "\n" #define Max(x,y,z) max(x,max(y,z)) #define Min(x,y,z) min(x,min(y,z)) #define fr(i,s,e) for(i=s;i=e;i--) #define pb push_back #define mp make_pair typedef long long ll; typedef unsigned int uint; typedef unsigned long long ull; typedef pair pii; typedef pair pll; typedef vector vi; typedef vector vll; typedef vector > vpll; typedef vector> vvll; #define PI 3.141592653589793 #define MOD 1000000007 int main() { ll g; cin>>g; for(ll z=0;z>N; ll count=0; vector check(N+1,true); check[0]=check[1]=false; for(ll i=2;i*i<=N;i++) { if(check[i]==true) { for(ll j=2;i*j<=N;j++) { check[i*j]=false; } } } for(ll i=0;i