#include <bits/stdc++.h>   using namespace std;   const int MAXN = 1007;   bool ans[MAXN];   signed main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     string s;     cin >> s;     int n = s.size();     int l = 0;     for (int i = 0; i < n; ++i) {       if (s[i] ==  a  && (i == n - 1 || s[i + 1] ==  b )) {         ans[l] = 1;         ans[i] = 1;       }       if (s[i] ==  b ) l = i;     }     for (int i = 0; i < n; ++i) cout << ans[i] <<    ;     cout <<   n ;     return 0;   }   