#include <stdio.h>

void main(void){
	double a = 0 , b = 0;
	int inputA = scanf("%le",&a);
	if(inputA == 2){
		printf("Aの入力エラー\n");
	}
	int inputB = scanf("%le\n",&b);
	if(inputB == 2){
		printf("Bの入力エラー\n");
	}
	double tax = b/100 + 1;
	double sum = floor(a * tax);
	//printf("消費税分：%fユキコダ\n",tax);
	//printf("税込み金額：%1.fユキコダ\n",sum);
	printf("%.0f\n",sum);
}