#include <stdio.h>

int main() {
    float x;
    float coefficient;
    float result = 0;
    int exponent = 0;


    if (scanf("%f", &x) != 1) {
        printf("Chyba\n");
        return 1;
    }


    while (scanf("%f", &coefficient) == 1) {
        result += coefficient * pow(x, exponent);
        exponent++;
    }


    printf("Vysledok je: %.2f\n", result);

    return 0;
}