#include<bits/stdc++.h> using namespace std; int prime(int n){ if(n<=1){ return 0; } for(int i=2;i*i<=n;i++){ if(n%i==0){ return 0; } } return 1; } int main(){ int a,b; cin>>a>>b; for(int i=a;i<=b;i++){ if(prime(i)) cout<<i<<endl; } return 0; }
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