#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<ctype.h>
#include<math.h>
char a[100],b[10];
int x[100],c[100];
int main()
{
	scanf("%s%s",&a,&b);
	int i,k = 0,alen = strlen(a),t = 0;
	for(i = alen - 1;i >= 0;i--){
		x[k++] = a[i] - '0';
	}
	int y = atoi(b);
	int p = 0;
	for(i = alen - 1;i >= 0;i--){
		t = t * 10 + x[i];
		c[p++] = t / y;
		t = t % y;
	}
	
	for(i = 0;i < p;i++){
		if(c[i]!=0){
			k = i;
			break;
		}
	}
	for(i = k;i < p;i++){
		printf("%d",c[i]);
	}
	
	return 0;
}
/**************************************************************
	Problem: 1604
	User: admin
	Language: C
	Result: Accepted
	Time:57 ms
	Memory:1144 kb
****************************************************************/