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import java.util.* ;
import java.io.*;
public class Solution {
public static String encode(String message)
{
StringBuilder res=new StringBuilder("");
int p=1;
for(int i=0;i<message.length()-1;i++)
{
if(message.charAt(i)==message.charAt(i+1))
{
p++;
}
else{
res.append(message.charAt(i));
res.append(p);
p=1;
}
}
res.append(message.charAt(message.length()-1));
res.append(p);
return res.toString();
}
}