/*
TASK: sqrt
LANG: C++
*/

#include <iostream>
#include <iomanip>
#include <cmath>
#include <sstream>
#include <string>

using namespace std;

void print( int how, int after ) {
    
    string af = string( after, '0' );
    cout << how << "," << af << endl;
    exit( 0 );     
}

int main() {
    
    int a, n;
    cin >> a >> n;
    
    if( a ==  1 ) print( 1, n );
    if( a ==  4 ) print( 2, n );
    if( a ==  9 ) print( 3, n );
    if( a == 16 ) print( 4, n );
    if( a == 25 ) print( 5, n );
    if( a == 36 ) print( 6, n );
    if( a == 49 ) print( 7, n );
    if( a == 64 ) print( 8, n );
    if( a == 81 ) print( 9, n );
    
    
    long double s = sqrt( a );
    stringstream stream;
    stream << fixed << setprecision( 16 ) << s;
    string res = stream.str();
    
    res[1] = ',';
    cout << res.substr( 0, n+2 ) << endl;
        
    return 0;
}
