/*
TASK:sqrt
LANG:C++
*/
#include <iostream>
#include <math.h>
#include <iomanip>
using namespace std;
int main()
{
    double a,b,i;
    int n;
    cin>>a>>n;
    b=sqrt(a);
    cout<<b;
    while(i!=b||i>b)
    i++;
    if(b==i)
    {
            cout<<",";
             for(i=0;i<n;i++)
              cout<<"0";
    }
    cout<<endl;
    system("pause");
    return 0;
}
