#include<bits/stdc++.h> using namespace std; int ss(int n){ if(n<2){ return 0; }else{ for(int i=2;i<=sqrt(n);i++){ if(n%i==0){ return 0; } } return 1; } } int main() { int n,i,s=0; cin>>n; for(i=1;i<=n;i++){ if(ss(i)){ s++; cout<<i<<" "; if(s%5==0){ cout<<endl; } } } return 0; } /************************************************************** Problem: 1064 User: zzz Language: C++ Result: Accepted Time:11 ms Memory:2072 kb ****************************************************************/