/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
		System.out.println(replace(reader.readLine(), reader.readLine(), reader.readLine()));
	}
 
	static String replace(String source, String from, String to) {
        StringBuilder builder = new StringBuilder(source);
        int idx;
        while ((idx = builder.indexOf(from)) != -1) {
            builder.replace(idx, idx+from.length(), to);
        }
        return builder.toString();
    }
}

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