void main()
{
	long int year,month,day,a,b,c,m,n,x,y;
	scanf("%ld %ld %ld",&year,&month,&day);
	a=(year-1)%400;
	m=a/100;
	n=a/4;
	b=365*a+(n-m);
	if(year%4==0&&year%100!=0||year%400==0)
	{
		switch(month)
		{
		case 1:c=b;break;
		case 2:c=b+31;break;
		case 3:c=b+60;break;
		case 4:c=b+91;break;
		case 5:c=b+121;break;
		case 6:c=b+152;break;
		case 7:c=b+182;break;
		case 8:c=b+213;break;
		case 9:c=b+244;break;
		case 10:c=b+274;break;
		case 11:c=b+305;break;
		case 12:c=b+335;break;
		}
		x=c+day;
		y=x%7;
	}
	else
	{
        switch(month)
		{
		case 1:c=b;break;
		case 2:c=b+31;break;
		case 3:c=b+69;break;
		case 4:c=b+90;break;
		case 5:c=b+120;break;
		case 6:c=b+151;break;
		case 7:c=b+181;break;
		case 8:c=b+212;break;
		case 9:c=b+243;break;
		case 10:c=b+273;break;
		case 11:c=b+304;break;
		case 12:c=b+334;break;
		}
		x=c+day;
		y=x%7;
	}
	switch(y)
	{
	case 1:printf("Mon.\n");break;
    case 2:printf("Tue.\n");break;
	case 3:printf("Wed.\n");break;
	case 4:printf("Thu.\n");break;
	case 5:printf("Fri.\n");break;
	case 6:printf("Sat.\n");break;
    case 0:printf("Sun.\n");break; 
	}
}
