Go: package main

import (
	"bufio"
	"os"
	"strconv"
	"fmt"
)

var scanner = bufio.NewScanner(os.Stdin)

func nextInt() int {
	scanner.Scan()
	i, e := strconv.Atoi(scanner.Text())
	if e != nil {
		panic(e)
	}
	return i
}

func zeller(month, day int) int {
	year := 2004
	if month == 1 || month == 2 {
		year--
		month += 12
	}
	return (year + year/4 - year/100 + year/400 + (13*month+8)/5 + day)%7
}

func main() {
	scanner.Split(bufio.ScanWords)
	for {
		month := nextInt()
		day := nextInt()
		if month == 0 && day == 0{
			break
		}
		switch zeller(month, day) {
		case 0:
			fmt.Println("Sunday")
		case 1:
			fmt.Println("Monday")
		case 2:
			fmt.Println("Tuesday")
		case 3:
			fmt.Println("Wednesday")
		case 4:
			fmt.Println("Thursday")
		case 5:
			fmt.Println("Friday")
		case 6:
			fmt.Println("Saturday")
		}
	}
}

C++: //1=31,2=29,3=31,4=30,5=31,6=30,7=31,8=31,9=30,10=31,11=30,12=31//
#include <iostream>
#include<string>
using namespace std;
int main(){
    string str[7]{"Wednesday","Thursday","Friday","Saturday","Sunday","Monday","Tuesday"};
    int t[11]{31,60,91,121,152,182,213,244,274,305,335};
    //        0   1  2  3   4   5   6  7    8   9   10//
    int d,m;
    while(cin>>m>>d){
        if(m==0)break;
        if(m==1)cout<<str[d%7]<<endl;
        else{
            d=d+t[m-2];
            cout<<str[d%7]<<endl;
        }
    }
    return 0;
}

C++: #include<iostream>
#include<string>
#include<algorithm>
#include<map>
#include<set>
#include<utility>
#include<vector>
#include<cmath>
#include<cstring>
#include<cstdio>
#define loop(i,a,b) for(int i=a;i<b;i++) 
#define rep(i,a) loop(i,0,a)
#define rp(a) while(a--)
#define pb push_back
#define mp make_pair
#define all(in) in.begin(),in.end()
const double PI=acos(-1);
const double EPS=1e-10;
using namespace std;
typedef long long ll;
typedef vector<int> vi;
int main(){
	int data[12]={31,29,31,30,31,30,31,31,30,31,30,31};
	string out[7]={
	"Wednesday",
	"Thursday",
	"Friday",
	"Saturday",
	"Sunday",
	"Monday",
	"Tuesday"
	};
	int a,b;
	while(cin>>a>>b,a+b){
		int sum=b;
		rep(i,a-1)sum+=data[i];
		cout<<out[sum%7]<<endl;
	}
}

C++: #include<iostream>
#include<string>

int day(int m, int d){
	if(m==1)return d;
	if(m==2)return 31+d;
	if(m==3)return 60+d;
	if(m==4)return 91+d;
	if(m==5)return 121+d;
	if(m==6)return 152+d;
	if(m==7)return 182+d;
	if(m==8)return 213+d;
	if(m==9)return 244+d;
	if(m==10)return 274+d;
	if(m==11)return 304+d;
	if(m==12)return 366-d;
}

int main(){
	while(1){
		int m,d;
		std::cin>>m>>d;
		if(m==0)return 0;
		std::string s;
		if(day(m,d)%7==1)s="Thursday";
		if(day(m,d)%7==2)s="Friday";
		if(day(m,d)%7==3)s="Saturday";
		if(day(m,d)%7==4)s="Sunday";
		if(day(m,d)%7==5)s="Monday";
		if(day(m,d)%7==6)s="Tuesday";
		if(day(m,d)%7==0)s="Wednesday";
		std::cout<<s<<std::endl;
	}
}

C++: #include <iostream>
using namespace std;
int main(void)
{
  int m, d;
  
  while(1) {
    cin >> m >> d;
    if(m == 0) break;
    
    for(int i = m ; i > 1 ; i--) {
      if(i-1 == 4 || i-1 == 6 || i-1 == 9 || i-1 == 11) d += 30;
      else if(i-1 == 2) d += 29;
      else if(i-1 == 1 || i-1 == 3 || i-1 == 5 || i-1 == 7 || i-1 == 8 || i-1 == 10) d += 31;
    }
    
    if(d % 7 == 1) cout << "Thursday" << endl;
    if(d % 7 == 2) cout << "Friday" << endl;
    if(d % 7 == 3) cout << "Saturday" << endl;
    if(d % 7 == 4) cout << "Sunday" << endl;
    if(d % 7 == 5) cout << "Monday" << endl;
    if(d % 7 == 6) cout << "Tuesday" << endl;
    if(d % 7 == 0) cout << "Wednesday" << endl;
  }
  return 0;
}

C++: #include <iostream>
using namespace std;
int main(){
	int m,d;
	while(cin >> m >> d,m){
		int sum = 0;
		for(int i = 1; i < m; i++){
			switch(i){
				case 1:
				case 3:
				case 5:
				case 7:
				case 8:
				case 10:
					sum += 31;
					break;
				case 4:
				case 6:
				case 9:
				case 11:
					sum += 30;
					break;
				case 2:
					sum += 29;
					break;
				default:
					break;
			}
		}
		sum += d;
		switch(sum%7){
			case 0:
				cout << "Wednesday" << endl;
				break;
			case 1:
				cout << "Thursday" << endl;
				break;
			case 2:
				cout << "Friday" << endl;
				break;
			case 3:
				cout << "Saturday" << endl;
				break;
			case 4:
				cout << "Sunday" << endl;
				break;
			case 5:
				cout << "Monday" << endl;
				break;
			case 6:
				cout << "Tuesday" << endl;
				break;
		}
	}
	return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;

#define REP(i, n) for (int i = 0; i < (n); i++)

const int month[] = {0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30};
int main()
{
  int m, d, cntdays = 0;
  
  while (cin >> m >> d, m){
    cntdays = month[m - 1] + d;
    switch (cntdays % 7){
      case 5:
        cout << "Monday";
        break;
      case 6:
        cout << "Tuesday";
        break;
      case 0:
        cout << "Wednesday";
        break;
      case 1:
        cout << "Thursday";
        break;
      case 2:
        cout << "Friday";
        break;
      case 3:
        cout << "Saturday";
        break;
      case 4:
        cout << "Sunday";
        break;
    }
    cout << endl;
  }
}

C++: #include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <cstring>
#include <map>
#include <queue>
#include <stack>
#include <set>
#include <functional>
#include <sstream>
#include <complex>
#include <climits>
using namespace std;

#define REP(i,a,n) for(int i=(a);i<(int)(n);i++)
#define rep(i,n) REP(i,0,n)
#define pb push_back
#define mp make_pair
#define all(x) x.begin(),x.end()
#define EPS 1e-8

int main(){
	int m,d;
	const int day[] = {31,29,31,30,31,30,31,31,30,31,30,31};
	const char *youbi[] = {
		"Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"
	};
	while(scanf("%d",&m),m){
		scanf("%d",&d);
		int sum = 0;
		rep(i,m-1)sum+=day[i];
		sum += d;
		puts(youbi[(sum+2)%7]);
	}
	return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;

typedef complex<double> P;

string dow[] = {
"Monday",
"Tuesday",
"Wednesday",
"Thursday",
"Friday",
"Saturday",
"Sunday"
};
int main(){
	int m,d;
	while( cin >> m >> d && m ){
		int h = 3;
		for(int i = 1 ; i <= 12 ; i++){
			for(int j = 1 ; j <= vector<int>{-1,31,29,31,30,31,30,31,31,30,31,30,31}[i] ; j++){
				
				if( i == m and j == d ){
					cout << dow[h] << endl;
					goto exit;
				}
				h = (h+1) % 7;
			}
		}
		exit:;
	}
	
			
			
}

C++: #include <iostream>

using namespace std;

int main(void){
	int m, d;
	int i;
	int term;
	int dow;

	while(cin >> m >> d){
		if(m == 0 && d == 0) break;

		term = 0;
		for(i=1;i<m;i++){
			if(i==2){
				term += 29;
			}else if(i==4||i==6||i==9||i==11){
				term += 30;			
			}else{
				term += 31;
			}
		}
		term += d - 1;

		dow = term % 7;

		switch(dow){
		case(0):
			cout << "Thursday" << endl;
			break;
		case(1):
			cout << "Friday" << endl;
			break;
		case(2):
			cout << "Saturday" << endl;
			break;
		case(3):
			cout << "Sunday" << endl;
			break;
		case(4):
			cout << "Monday" << endl;
			break;
		case(5):
			cout << "Tuesday" << endl;
			break;
		case(6):
			cout << "Wednesday" << endl;
			break;
		}
	}

	return 0;
}

C++: #include <iostream>
using namespace std;
const string str[] = {"Wednesday","Thursday","Friday",
		      "Saturday","Sunday","Monday","Tuesday"};
const int m[] = {0,31,29,31,29,31,30,31,31,30,31,30,31};
int main(){
  int mon,day;
  while(cin >> mon >> day, mon + day){

    for(int i = 0 ; i < mon ; i++){
      day += m[i];
    }
    cout << str[day%7] << endl;
}
  return 0;
}