#include <stdio.h>

int main(){
	float vxod[999];
	int i = 0;
	float result = 0;
	while(1){
		float value = 0;
		float r = scanf("%f", &value);
		if(r == 1){
    			vxod[i++] = value;
		}else if(r <= 255 && r >= 0){
			printf("Nepodarilo_sa_nacitat_polynom_na_2_mieste.\n");
			break;
		}
		else{
    			for(int a = 1; a < i; a++)
				result = vxod[0] * result + vxod[a];
			printf("Vysledok je: %.2f\n", result);
			break;
		}
	}
	return 0;
}