#include<stdio.h>
int main(){
	int a,p,q,b,c;
	scanf("%d %d %d",&a,&p,&q);
	b = (p+q)*a;
	c = p*q*a;
	if( (b*b) > 4*a*c ){
		printf("Yes");
	}else{
		printf("No");
	}
}