#include <stdio.h>
#define maxcoe 100

int read_number (double *num) {
    char buffer[50];
    if (!fgets(buffer, sizeof(buffer), stdin)) { 
        return 0;
    }

    if (sscanf(buffer, "%lf", num) != 1) { 
        return 0;
    }
    return 1;
}

double hornerovaschema (double x, double cofecients[], int count) { 
    double result = 0.0;
    for (int i = 0; i < count; i++) {
        result = result * x + cofecients[i];
    }
    return result;
}

int main() {
    double x; 
    double cof[maxcoe];
    int count = 0;
    
    if (!read_number(&x)) { 
        printf("Nepodarilo sa nacitat zaklad x\n");
        return 0;
    }


    while (count < maxcoe) {
        double coef; 
        char buffer[50];

        if (!fgets(buffer, sizeof(buffer), stdin) || buffer[0] == '\n') {
            break;
        }

        if (sscanf(buffer, "%lf", &coef) != 1) {
            printf("Nepodarilo sa nacitat polynom na %d mieste.\n", count + 1);
            return 0;
        }
        cof[count] = coef;
        count++; 
    }

        double result = hornerovaschema(x, cof, count);

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

    return 0;
}