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- #include <iostream>
- using namespace std;
- bool isPrime(int n){
- if(n<=1) return false;
- for(int i=2; i<=n/2; i++){
- if(n%i==0) return false;
- }
- return true;
- }
- int main(){
- int n;
- cin >> n;
- for(int i=2; i<=n; i++){
- if(isPrime(i)) cout<<i<<endl;
- }
- }
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