import java.io.*; import java.util.*; public class Main { public static void main(String[] args) throws IOException { BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); BufferedWriter bw =new BufferedWriter(new OutputStreamWriter(System.out)); StringTokenizer st; String str; String str1, str2; while(true) { str = br.readLine(); if (str==null) break; st = new StringTokenizer(..