#include <iostream>
#include <string>


using namespace std;

int main()
{
    const string hnev[12]={"jan","feb","march","apr","may","june","july","aug","sept","oct","nov","dec"};
    string month, season;
   
        for(int i=0; i<12; ++i)
        cout<<hnev[i]<<", ";
        cout<<endl;


       int i;

        do
        {
        cout<<"give the name of the month: ";
        cin>>month;
        for(i=0; i<12&&hnev[i]!=month; ++i);
        if (i>11)
        cout<<"it's not a valid name, give it again: " <<endl;
        }while(i>11);

        switch(i)
        {
            case 0:
            case 1:
            case 11:
                season="winter";
                break;
            case 2:
            case 3:
            case 4:
                season="spring";
                break;
            case 5:
            case 6:
            case 7:
                season="summer";
                break;
            case 8:
            case 9:
            case 10:
               season="fall";
                break;
        }
        cout<<"the season is: "<<season<<endl;

    return 0;
}