//Name: 周政耀
//ID Number: B10515009
//Problem: Design Month Class
#include <iostream>
#include <string>

using namespace std;

string MONTH_TABLE[12] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};

class Month{
private:
    int month_;
public:
    Month();
    Month(int);
    Month(char, char, char);
    void inputInt();
    void inputFirstThreeLetters();
    void outputInt();
    void outputFirstThreeLetters();
    Month nextMonth();
};

Month::Month(){
    //default
    this->month_ = 1;
}

Month::Month(int month){
    // initializing and use number to represent a month
    this->month_ = month;
}

Month::Month(char firstLetter, char secondLetter, char thirdLetter){
    // initializing and use the first three letter to represent a month
    string month = "";
    month += firstLetter;
    month += secondLetter;
    month += thirdLetter;
    for(int i=0;i<12;++i){
        if(month == MONTH_TABLE[i]){
            this->month_ = i+1;
            break;
        }
    }
}

void Month::inputInt(){
    // reads the month as an integer
    int month;
    cin >> month;
    this->month_ = month;
}

void Month::inputFirstThreeLetters(){
    // reads the month as the first three letters in the name of the month
    char tempLetter;
    string month = "";
    for(int i=0;i<3;++i){
        cin >> tempLetter;
        month += tempLetter;
    }
    for(int i=0;i<12;++i){
        if(month == MONTH_TABLE[i]){
            this->month_ = i+1;
            break;
        }
    }
}
void Month::outputInt(){
    // output the month as an integer
    cout << this->month_;
}

void Month::outputFirstThreeLetters(){
    // outputs the month as the first three letters in the name of the month
    cout << MONTH_TABLE[this->month_-1];
}

Month Month::nextMonth(){
    //returns the next month as a value of type Month
    return Month(this->month_+1!=13?this->month_+1:1);
}

//input-main1.cpp
int main(void)
{
    Month month1, month2(2), month3('M', 'a', 'r'), month4, month5, month6;
    month4 = month3.nextMonth();
    month5.inputInt();
    month6.inputFirstThreeLetters();

    cout << "Month1 = ";
    month1.outputInt();
    cout << ' ';
    month1.outputFirstThreeLetters();
    cout << endl;

    cout << "Month2 = ";
    month2.outputInt();
    cout << ' ';
    month2.outputFirstThreeLetters();
    cout << endl;

    cout << "Month3 = ";
    month3.outputInt();
    cout << ' ';
    month3.outputFirstThreeLetters();
    cout << endl;

    cout << "Month4 = ";
    month4.outputInt();
    cout << ' ';
    month4.outputFirstThreeLetters();
    cout << endl;

    cout << "Month5 = ";
    month5.outputInt();
    cout << ' ';
    month5.outputFirstThreeLetters();
    cout << endl;

    cout << "Month6 = ";
    month6.outputInt();
    cout << ' ';
    month6.outputFirstThreeLetters();
    cout << endl;
    return 0;
}