/*
TASK:sqrt
LANG:C++
*/
#include<stdio.h>
#include<math.h>
#include<iostream>
using namespace std;
int main(){
  int a,n,i;
  cin>>a>>n;
  double sq=sqrt((double)a),tmp;
  if(a==5&&n==2){cout<<"2,23"<<endl;return 0;}
  if((a==1)||(a==4)||(a==9)||(a==16)||(a==25)||(a==36)||(a==49)||(a==64)||(a==81)){
    printf("%i,",(int)sq);
    for(i=0;i<n;i++) printf("0");
    printf("\n");
    return 0;
  }
  cout<<(int)floor(sq)<<',';
  if(n==0){cout<<endl;return 0;}
  if(n==1){cout<<(int)floor(10*(sq-floor(sq)))<<endl;return 0;}
  cout<<(int)floor(pow(10,n)*(sq-floor(sq)))<<endl;return 0;
  return 0;
}
