import java.io.*;
import java.util.*;
class Main {
//
// write your logic here and print the desired output
//
int position=first.indexOf(second.charAt(0));
if(position==-1)
{
result=first.substring(0,first.length()-1)+second.substring(1);
}
else
result=first.substring(0,position)+second;
}
// Following is the part of the program and is provided as an assistance to read the input.
public static void main
(String[] args
) { Scanner in
= new Scanner
(System.
in); solution(first, second);
in.close();
}
}
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