#include<stdio.h>
int main()

{
    int Arman_Dipu = 1;
    int H, A, i;
    int count=0;
    scanf("%d %d",&H,&A);
    for(count = 0; H>0; count++)
    {
        H = H - A;
    }
    printf("%d",count);
    return 0;
}