#include<stdio.h>
char a[2000];
int n;
int main()
{
	scanf("%s",a);
	scanf("%d",&n);
	for(int i=1;i<=n;i++)
	for(int j=0;a[j]!='\0';j++)
	if(a[j]>a[j+1])
	{
		for(int t=j;a[t]!='\0';t++)
		a[t]=a[t+1];
		break;
	}
	int j=0;
	while(a[j]=='0')
	j++;
	for(int i=j;a[i]!='\0';i++)
	putchar(a[i]);
	return 0;
}
/**************************************************************
	Problem: 1373
	User: admin
	Language: C
	Result: Accepted
	Time:21 ms
	Memory:1148 kb
****************************************************************/