#include<sstream>
using namespace std;
string s,a,b;
void Output()
{
	istringstream sin(s);
	string temp;
	while(sin>>temp)
	{
		if(temp==a)
		{
			cout<<b<<' ';
		}
		else
		{
			cout<<temp<<' ';
		}
		
	}
	return ;
}
void Input()
{
	getline(cin,s);
	getline(cin,a);
	getline(cin,b);
	return ;
}
int main()
{
	Input();
	Output();
	return 0; 
}

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#include<bits/stdc++.h>
using namespace std;
int main()
{
string s;
string a,b;
getline(cin,s);
getline(cin,a);
getline(cin,b);
int len1=s.size();
int len2=a.size();
int j;
for(int i=0;i<len1;i++)
{
for(j=0;j<len2;j++)
{
if(s[i+j]!=a[j])	
break;
if(i>0&&s[i-1]!=' ')	
break;
}
if(j==len2&&(s[i+j]==' '||j+i==len1))
{
cout<<b;
i=i+j;
cout<<" ";
}
else
{
cout<<s[i];
}
}
return 0;
}

#include<bits/stdc++.h>
using namespace std;
int main()
{
string s;
string a,b;
getline(cin,s);
getline(cin,a);
getline(cin,b);
int len1=s.size();
int len2=a.size();
int j;
for(int i=0;i<len1;i++)
{
for(j=0;j<len2;j++)
{
if(s[i+j]!=a[j])	
break;
if(i>0&&s[i-1]!=' ')	
break;
}
if(j==len2&&(s[i+j]==' '||j+i==len1))
{
cout<<b;
i=i+j;
cout<<" ";
}
else
{
cout<<s[i];
}
}
return 0;
}