#include <bits/stdc++.h>
using namespace std;
int main()
{
	string s,a,b;
	getline(cin, s);
	getline(cin, a);
	getline(cin, b);
	s=" "+s+" ";
	a=" "+a+" ";
	b=" "+b+" ";
	int f=s.find(a);
	while(f!=-1){
		s.replace(f,a.size(),b);
		f=s.find(a,f+1);
	}
	cout<<s.substr(1,s.size()-2);
	return 0;
}