#include <iostream>
#include <string>
#include <vector>
#include <iterator>
 
using namespace std;
 
vector<string> res(const string& p) {
    vector<string> vres;
    vres.reserve(p.size());
    for(auto c: p) vres.emplace_back(1,c);
    return vres;
}
 
int main(int argc, char* argv[])
{
    string word = "Hello";
 
    vector<string>result = res(word);
    copy(result.begin(), result.end(), ostream_iterator<string>(cout, " "));
 
    return 0;
}
 

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