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Cod sursa(job #662291)
//sum
#include<fstream>
using namespace std;
ifstream cin("sum.in");
ofstream cout("sum.out");
long long x,i, sum, n, j;
int cmmdc (long long a, long long p)
{ if(a%p==0) return 0;
else return 1;
}
int main()
{
cin>>n;
for(j=1;j<=n;j++)
{
sum=0;
cin>>x;
if(x%2==0)
{for(i=1;i<=2*x;i+=2)
if(cmmdc(i, x))
sum=sum+i;}
else
{for(i=0;i<=2*x;i++)
if(cmmdc(i, x)==1)
sum=sum+i;}
cout<<sum<<"\n";}
return 0;
}