static bool sort_find(string& a, string& b){
         if(a.size() < b.size()){
             return true;
         }
         else if(a.size() > b.size()){
             return false;
         }
         else{
             for(int i=0;i<a.size();i++){
                if(a[i] ==  b[i] )
                  continue;
                 else if(a[i] < b[i]){
                    return true;
                  }
                 else{
                   return false;
                }
             }
             return true;
         }
     }

int main(){

 string array[13]={"m","mo","moc","moch","mocha","l","la","lat","latt","latte","c","ca","cat"};

 vector<string> svector(array,array+13);
 sort(svector.begin(),svector.end(),sort_find);
 return 0;
}