#include <iostream>
#include <vector>
#include <algorithm>
#include <ios>
#include <iomanip>
using namespace std;

int main(void){
  int key = 0;
  cout << setfill('0') << right << setw(3) << key << endl;
  string s;
  while(1){
    cin >> s;
    if(s == "locked"){
      key++;
      cout << setfill('0') << right << setw(3) << key << endl;        
    }else{
      break;
    }
  }
  return 0;
}