#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include <stdbool.h>
#include <ctype.h>
#define LINE_SIZE  100


//#include<conio.h>


float program(float polynom[], float n, float k){
    float result = 0; 
    for(int a = 0; a < k; a++){
        result = result * n + polynom[a];
    }
    return result;
}


/*void main() {
	int degree,x;
	int coeff[10], i;
	int sum = 0;
	
 // Getting the value of the variable
	printf("\nEnter the value of x: ");
	scanf("%d",&x);
 
	// Getting the degreee of the polynomial
	printf("\nEnter the degree of the polynomial: ");
	scanf("%d",&degree);
	
  // Getting the coefficients of all terms of the polynomial
	printf("\nEnter the coeffients from lower order to higher order: \n");
	for(i=0; i<=degree; i++) {
		scanf("%d",&coeff[i]);
	}
	
	// Applying Horner's rule
	sum = coeff[degree];
	for(i=degree-1; i>=0; i--) {
		sum = sum*x + coeff[i];
	}
	
	// Printing result
	printf("\nResult: %d",sum);
}

*/

int main(){
  float pole[LINE_SIZE];
  //double n;
  float n;
  int m;
  int a=0;
  int b=0;
  memset(pole,0,LINE_SIZE*sizeof(float));
  
  /*char*vstup;
  char riadok[LINE_SIZE];  
  do {
    vstup=fgets(riadok,LINE_SIZE,stdin);
    n++;   
  }while(*vstup!='\n');
  //printf("%s",*vstup);
  for(int i=0;n>i;i++){
    printf("%s",vstup);
  }*/
  int p = scanf("%lf",&n);
  
  if(1 != p){
    return 1;
  }
  for(;b<LINE_SIZE){
    b++;
    char vel[50] ={0};
    char* g =fgets(value,100,stdin);
    if(a==0 && g==NULL) error == true;
    bool error==false;
    for (a < strlen(vel); a++) {
    if (vel[a] != '\n' && vel[a] != ' ' && vel[a] != '.' && vel[a] != ',' && vel[a] != '-' && isdigit(vel[a]) == false) {
    error = true; b++;break;}
    }

        if (error == true) {
            printf("Nepodarilo sa nacitat polynom na %d mieste.\n", a);
            exit(0);
        }

        if (g == NULL) {
        break;
        }
        else if(vel[0] == '\n'){
            if (b == 0) { 
                b--;
                continue;
            }
            else break; 
        }
        else if (vel[0] == EOF) break;

        pole[b] = atof(value);
    }

    float k = b;
    printf("Vysledok je: %.2f\n", program(pole, n, k));

    return 0;
}