import java.util.*;

 

public class taylor {

public static void main(String[] args) {

Scanner input=new Scanner(System.in);

System.out.println("bir sayı girin ");

double x=input.nextDouble();

double top=0;

for(double n=1.0;n<=100;n++){

top+=(1/faktoriyel(n))*Math.pow(x,n);

}

double sonuc=top+1;

System.out.println("exp("+x+")= "+sonuc);

}

public static double faktoriyel(double number){

double toplam=1;

for(int i=1;i<=number;i++){

toplam*=i;

}

return toplam;

}

}