#include<bits/stdc++.h>
using namespace std;
int main(){
    string s;
    cin>>s;
    char c;
    cin>>c;
    //int p=s.find(c);
    //if(p==-1){
    //	cout<<s;
	//}else{
	//	while(p!=-1){
	//		s.erase(p,1);
	//		p=s.find(c,p);
	//	}
	//	cout<<s;
	//}
	for(int i=0;i<s.size();i++){
		if(s[i]!=c){
			cout<<s[i];
		}
	}
	return 0;
}

/**************************************************************
	Problem: 1131
	User: yangjunwenredianling
	Language: C++
	Result: Accepted
	Time:14 ms
	Memory:2076 kb
****************************************************************/