#include <iostream>
#include <string>
#include <iomanip>

using namespace std;

string StripClass(string phrase, int(*TestFunc)(int)) {
    size_t i;
    string rv;

    for(i=0;i<phrase.size();i++) {
       if (! TestFunc(phrase[i])) {
          rv += phrase[i];
       }
    }
    return rv;
}

string Reverse(string s) {
    string rv;
    size_t i;

    for(i=0;i<s.size();i++) {
        rv = s[i] + rv;
    }

    return rv;
}

void PrintLabeled(string s, string label) {
    cout << setw(20) << label << "\t\"" << s <<"\"" << endl;
    return;
}

int main() {
    string phrase;
    string stripped; 
    string reversed;
    string reverseStripped;

    phrase = "Hello World ? ? !!...";
    stripped = StripClass(phrase, ispunct);
    reversed = Reverse(phrase);
    reverseStripped = Reverse(stripped);

    PrintLabeled(phrase,"Phrase");
    PrintLabeled(stripped,"Stripped");
    PrintLabeled(reversed,"Reversed");
    PrintLabeled(reverseStripped,"Reverse Stripped");

    return 0;
}