View Code of Problem 609

#include<bits/stdc++.h>
using namespace std;
int main(){
	string s;
	while(cin>>s){
		int n;cin>>n;
		while(n--){
			int i;
			for(i=0;i<s.size()-1;++i)
				if(s[i]>s[i+1]){
					s.erase(i,1);
					break;
				}
		}
		while(s[0]=='0')
		s.erase(0,1);
		if(s.size()==0)
		cout<<0<<endl;
		else
		cout<<s<<endl;
	}
}