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

/**************************************************************
	Problem: 1131
	User: fzy001
	Language: C++
	Result: Accepted
	Time:14 ms
	Memory:2076 kb
****************************************************************/