// a_01.cpp


#include <iostream>

#include <vector>
#include <string>

using namespace std;

const string B = "10";

int main(int argc, char* argv[]) {

  // init
  vector<string> given;

  given.push_back("01010101");
  given.push_back("11000011");
  given.push_back("10011000");
  given.push_back("10010111");

  // compute
  vector< vector<int> > computed;

  int n = given.size();

  for(int i=0; i<n; ++i) {
    string t = given.at(i);

    // count
    vector<int> counts(2,0);

    char b = B.at(0);

    int l = t.length();
    for(int j=0; j<l; ++j)
      if(t.at(j)==b) ++counts.at(0);
      else ++counts.at(1);

    computed.push_back(counts);
  }

  // output
  int m = computed.size();

  cout << endl;

  for(int i=0; i<m; ++i) {
    vector<int> v = computed.at(i);
    cout << v.at(0) << endl;
  }

  cout << endl;

  // output
  for(int i=0; i<m; ++i) {
    vector<int> v = computed.at(i);
    cout << v.at(1) << endl;
  }

}