#include<stdio.h>
#include<math.h>
int main(){
	int m,n;
	scanf("%d %d",&m,&n);
	if(m>=10000 && m<=2000000 && n>=2000&&n<=10000){
		printf("%d",(int)ceil(1.0*m/n) ); 
	}
	else printf("no");
	return 0;
}