#include<bits/stdc++.h> using namespace std; int main(){ int n,a[222]={0},i,c; cin>>n; for(i=0;i<n;i++){ cin>>a[i]; c=a[i]*a[i]; if(c%7!=1){ cout<<a[i]<<" "; } } } /************************************************************** Problem: 1156 User: zengyixuan Language: C++ Result: Accepted Time:10 ms Memory:2072 kb ****************************************************************/