RunLength.java

importjava.util.; 
importjava.io.;

classMain {

publicstaticStringRunLength(Stringstr) {
// code goes here
Stringrepost = "";
intcount = 1;
charc = str.charAt(0);
for(inti=1; i<str.length();i++){
if(str.charAt(i)==c){
count++;
 }
else{
repost += count + "" +c;
c = str.charAt(i); 
count = 1;
 }
 }

repost += count + "" +c;

returnrepost;
 }

publicstaticvoidmain (String[] args) {
// keep this function call here
Scanners = newScanner(System.in);
System.out.print(RunLength(s.nextLine()));
 }
}