ZadatakR35

#include <iostream>
#include <cmath>

using namespace std;

int main()
{
float i,n,s;
cin>>n;
s=0;
i=0;
for(i=0;i<n;i++)
{
s=s+pow(10,i);

}
unsigned long long int x=s*s;
cout<<x;
return 0;
}

 

 

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