import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Main { public static void main(String[] args) { BufferedReader r = new BufferedReader(new InputStreamReader(System.in)); String aEn, bDe; char[] ch1 = new char[] {'z', 'a', 'b', 'c', 'd', 'e', '...