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#include <bits/stdc++.h>
using namespace std;

int ile = 1;
int m = 4;
int n;
int maxx;
int zaraz;
int zaszcz;
pair<int, int> pik;
string s = "0000";
vector <int> v;
vector <bool> vv;
bool t;

int main() {
  //cout<<"hej";
  //cin >> ile;
  
  for(int i = 0; i < ile; i++){
    //cin >> m;
    //cout<<"hej";
    v.resize(m + 1);
    vv.resize(m + 1);
    //cin >> s;
    for(int j = 0; j < m; j++){
      v[j] = static_cast <int> (s[j] - 48);
      if(s[j] == '1')
        zaraz++;
    }

    t = 1;
    
    while(zaraz + zaszcz < m){
      if( t || vv[pik.second - 1]){
        t = 0;
        for(int j = 0; j < m - 1; j++){
          if(v[j] == 0 && v[j+1] == 0)
            n++;
          else 
            n=1;
          if(maxx<n){
            maxx=n;
            pik.first = j - maxx + 2;
            pik.second = j + 1;
          }
        }
      }
      cout<<pik.first << " p " << pik.second << " k "<<endl;
      if(!vv[pik.first])
        vv[pik.first] = 1;
      else
        vv[pik.second - 1] = 1;
      
      zaszcz++;
      t = 0;
      for(int j=0; j < m; j++){
        if(v[j] == 0 && (v[j - 1] == 1 || v[j + 1] == 1) && !vv[j]){
          v[j] = 1;
          zaraz++;
          t = 1;
        }
      }
      if(!t)break;
      t = 0;
        
    }
    cout<<zaraz;
  }

  return 0;
}