#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#define LINE_SIZE 256

int main() {
char line[LINE_SIZE];

int counter = 0;

double x, kef, resultat = 0.0;


if(fgets(line, sizeof(line), stdin) == NULL) {

    return 1;
}

if (sscanf(line, "%lf", &x) != 1) {

  printf("Nepodarilo sa nacitat zaklad x\n");
  return 0;

}
while (fgets(line, sizeof(line), stdin) != NULL)

{
    if (line[0] == '\n' || line[0] == '\r') {

        break;

    }
    if (sscanf(line, "%lf", &kef) == 1) {
        resultat = resultat * x + kef;
        counter = counter + 1;
        
    }
    else {
        printf("Nepodarilo sa nacitat polynom na %d mieste.\n", counter + 1);
        return 0;
    }
}
printf("Vysledok je: %.2f\n", resultat);
return 0;
}