#include <stdio.h>

int main(void){
	int value = 0;
	scanf("%d",&value);
	double tax = 0;
	scanf("%lf",&tax);
	if(tax < 10){
		tax = tax /100;
	}else{
		tax = tax /10;
	}
	
	int res = value * tax;
	printf("%d",value + res);
}