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import java.util.*;
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import java.io.*;
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import java.text.*;
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public class Main
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{
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public static void main(String[]ages) throws IOException
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{
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BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
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String line;
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HashMap map = new HashMap();
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int count = 0;
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while( (line=stdin.readLine())!=null )
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{
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count++;
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if(map.containsKey(line))
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{
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int freq = Integer.parseInt(map.get(line).toString());
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map.remove(line);
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map.put(line, String.valueOf(freq+1));
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}
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else
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{
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map.put(line,"1");
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}
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}
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List list = new ArrayList(map.entrySet());
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Collections.sort(list, new Comparator() {
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public int compare(Object o1, Object o2) {
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Map.Entry obj1 = (Map.Entry) o1;
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Map.Entry obj2 = (Map.Entry) o2;
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return obj1.getKey().toString().compareTo(obj2.getKey().toString());
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}}
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);
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Iterator iter = list.iterator();
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while(iter.hasNext())
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{
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Map.Entry entry = (Map.Entry) iter.next();
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int value = Integer.parseInt(entry.getValue().toString());
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System.out.print( entry.getKey().toString()+" ");
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DecimalFormat df = new DecimalFormat("0.0000");
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System.out.println(df.format(value*100.0/count));
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}
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}
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}
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