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Cod sursa(job #718424)
#include<fstream>
#include<cmath>
using namespace std;
ifstream f("cifra.in");
ofstream g("cifra.out");
long long n;
double x;
int sum(int x){
int s=0;
for(double j=1; j<=x; j++){
s+=(int)pow(j,j)%10;
s=s%10;
}
return s;
}
int main(){
f>>n;
for(int i=1; i<=n; i++){
f>>x;
if(x==1) g<<x<<'\n';
else
g<<sum(x)<<'\n';
}
return 0;
}