day_from_date

import java.util.*;
class day
{
    int dd,mm,yy;

    void input()
    {
        Scanner in= new Scanner(System.in);
        System.out.println("enter dd :");
        dd=in.nextInt();
        System.out.println("enter mm :");
        mm=in.nextInt();
        System.out.println("enter yy :");
        yy=in.nextInt();
    }

    int cc(int n)
    {
        int yl[]={0,6,4,2,0,6};
        if(n>=1500 && n<=1599)
        return yl[0];

        else if(n>=1600 && n<=1699)
        return yl[1];

        else if(n>=1700 && n<=1799)
        return yl[2];

        else if(n>=1800 && n<=1899)
        return yl[3];

        else if(n>=1900 && n<=1999)
        return yl[4];


        else if(n>=2000 && n<=2099)
        return yl[5];

        else
        return 0;

    }

    void findDayNO()
    {
        int mL[]={1,4,4,0,2,5,0,3,6,1,4,6};
        String day[]={"sunday","monday","tuseday","wednesday","thursday","friday","saturday"};
       // int yl[]={0,6,4,2,0,6};
       int y1=yy%100;
        int calc= dd + mL[mm-1] + cc(yy) + y1 + (y1/4);
        //System.out.println(dd+"+"+mL[mm-1]+"+"+cc(yy)+"+"+(yy%100)+"+"+((yy%100)/4)+"=");
//        int a= calc;
//        System.out.println(a);
        calc = calc % 7;
        System.out.println(day[calc-1]);
    }

    public static void main (String[] args) {
        day ob=new day();
        ob.input();
        ob.findDayNO();
       // ob.getDay();
    }
}