#include<bits/stdc++.h>
using namespace std;
string s,a,b;
char t[205];
int len=0,i=0,sum=0;
int main(){
	cin>>s>>a>>b;
	while(i<s.length()){
		t[sum]=s[i];
		sum++;
		i++;
		if(s[i]==' '){
			if(t[sum]=='a')
			cout<<b<<" ";
			else cout<<t[sum]<<" ";
			i+=1;
			sum+=1;
		}
	}
	return 0;
}