# include <iostream>
using namespace std;

int main ()
{
    int ch=0,year;
    int rem=0,sum=0,num;
    // ;
    cout<<"1. To find leap year\n";
    cout<<"2. To print sum of digits of a number\n";
    cout<<"Enter a choice : ";
    cin>> ch;

    switch(ch)
    {
        case 1:
            cout<<"Enter year: ";
            cin>>year;

            if(year%4 == 0)
                cout<<"Its a leap year ";
            else
                cout<<"Its not a leap year ";
            break;

        case 2:
            cout<<"Enter a number: ";
            cin>>num;
            while(num != 0)
            {
                rem = num % 10;
                sum = sum + rem;
                num = num / 10;
            }
            cout<<"Sum of Digits is " << sum;
            break;

        default:
            cout<<"Invalid choice!!!";
            break;
    }

    return 0;
}