#include <stdio.h>

unsigned long select_mvp(unsigned long hp,unsigned long mvp_num);

int main(){

	unsigned long hp,mvp_num;
	char buf[40];

	fgets(buf,40,stdin);
	sscanf(buf,"%ld %ld",&hp,&mvp_num);

	printf("%ld\n",select_mvp(hp,mvp_num));
	
	return 0;
}


unsigned long select_mvp(unsigned long hp,unsigned long mvp_num){

	return hp / (mvp_num + 1) + 1;
}