#include <fstream>
using namespace std;
int val[101];
ifstream f("cifra.in");
ofstream g("cifra.out");
long long rec(long long x, long long y)
{
    if (!y)
        return 1;
    else if (y%2)
        return x%10*rec((x*x)%10, y/2)%10;
    else
        return rec((x*x)%10, y/2)%10;
}
int main()
{
    int n,p;
    f>>n;
    for (int i=1;i<=n;++i)
    {
        f>>val[i];
        p=0;
        val[i]=(val[i-1]+rec(val[i],val[i])%10)%10;
        p+=val[i];
        g<<p<<"\n";
    }
}