#include <fstream>
#include <iostream>
#include <string>
#include <algorithm>

using namespace std;

ifstream in("encoding.in");

int main()
{
  string s;
  unsigned int j,i;

  while(in >> s)
    {
      for(j = 0, i = 1; j != s.length(); j++)
	{
	  if (s[j] == s[j+1]) {
	    if(i == 0) {
	      cout << "1";
	      i++;
	    }
	    i++;
	  }
	  else
	    if(i == 1) {
	      cout << "1";
	      if(s[j] == '1') {
		cout << "1";
	      }
	      cout << s[j];
	      i = 0;
	    }
	    else
	      if(i == 0) {
		if(s[j] == '1') {
		  cout << "1";
		}
		cout << s[j];
	      }
	      else {
		for(;i >= 9; i = i - 9)
		  cout << "9" << s[j];
		if(i != 0) {
		  cout << i;		  
		  if(i == 1) 
		    i = 0;
		  else
		    i = 1;
		  cout << s[j];
		}
		else
		  i = 1;
	      }
	}
      if(i == 0) cout << "1";
      cout << endl;
    }
}