#include <iostream>
#include <string>
using namespace std;

int main()
{
    string hand = "Have a nice day";
    string nice = "nice";
    string Nice = "Nice";

    cout << hand.find(nice) << endl;
    cout << hand.find("nice") << endl;
    cout << hand.find(Nice) << endl;
    cout << nice << " is " << (hand.find(nice) == string::npos ? "not " : "") << "present" << endl;
    cout << Nice << " is " << (hand.find(Nice) == string::npos ? "not " : "") << "present" << endl << endl;

    // Find the first 'a'
    cout << hand.find('a') << endl;
    // Find the second 'a'
    cout << hand.find('a',hand.find('a')+1) << endl;
    // Find the third 'a'
    cout << hand.find('a',hand.find('a',hand.find('a')+1)+1) << endl;
    // Find the last 'a'
    cout << hand.rfind('a') << endl << endl;

    cout << hand.find_first_of(nice) << endl;
    cout << hand.find_first_of("abcde") << endl;
    cout << hand.find_first_of('v') << endl;
    cout << hand.find_first_of('v',3) << endl << endl;

    cout << hand.find_last_of("abcde") << endl;

    cout << hand.find_first_not_of("abcdefghijklmnopqrstuvwxyz") << endl;
    cout << hand.find_last_not_of("abcdefghijklmnopqrstuvwxyz") << endl;
}