#include<bits/stdc++.h> using namespace std; int n,x; int main(){ cin>>n; while(n--){ cin>>x; if(x*x%7!=1)cout<<x<<" "; } return 0; } /************************************************************** Problem: 1156 User: chenjingqi Language: C++ Result: Accepted Time:9 ms Memory:2072 kb ****************************************************************/