Go: package main

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

var sc = bufio.NewScanner(os.Stdin)

//Sliceconvtoi ...
func Sliceconvtoi() []int {
	strs := strings.Split(sc.Text(), " ")

	var ints []int
	var x int

	for _, s := range strs {
		x, _ = strconv.Atoi(s)
		ints = append(ints, x)
	}

	return ints
}

func main() {
	for sc.Scan() {
		i := Sliceconvtoi()

		if i[0] == 0 && i[1] == 0 {
			break
		}

		m := time.Month(i[0])
		d := i[1]
		t := time.Date(2004, m, d, 0, 0, 0, 0, time.Local)
		fmt.Println(t.Weekday())
	}

}

C++: //include
//------------------------------------------
#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>

using namespace std;

//conversion
//------------------------------------------
inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}

//math
//-------------------------------------------
template<class T> inline T sqr(T x) {return x*x;}

//typedef
//------------------------------------------
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef long long LL;
typedef unsigned long long ULL;

//container util
//------------------------------------------
#define ALL(a)  (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define PB push_back
#define MP make_pair
#define SZ(a) int((a).size())
#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())

//repetition
//------------------------------------------
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)

//constant
//--------------------------------------------
const double EPS = 1e-10;
const double PI  = acos(-1.0);

//clear memory
#define CLR(a) memset((a), 0 ,sizeof(a))

//debug
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl;

int main() {
  int month, dates, day;
  while(cin >> month >> dates) {
    if(month == 0)break;
    day = 3;
    for(int i = 1; i < month; i++) {
      switch(i) {
      case 1:
      case 3:
      case 5:
      case 7:
      case 8:
      case 10:
      case 12:
	day += 31;
	break;
      case 2:
	day += 29;
	break;
      case 4:
      case 6:
      case 9:
      case 11:
	day += 30;
	break;
      }
    }

    day += dates-1;
    day %= 7;
    
    switch(day) {
    case 0:
      cout << "Monday" << endl;
      break;
    case 1:
      cout << "Tuesday" << endl;
      break;
    case 2:
      cout << "Wednesday" << endl;
      break;
    case 3:
      cout << "Thursday" << endl;
      break;
    case 4:
      cout << "Friday" << endl;
      break;
    case 5:
      cout << "Saturday" << endl;
      break;
    case 6:
      cout << "Sunday" << endl;
      break;
    }
  }
}

C++: #include<iostream>
using namespace std;
int main(){
	int m,d;
	for(;;){
		cin >>m>>d;
		if(m == 0 && d == 0){break;}
		if(m == 2){d+=3;}
		else if(m == 3){d+=4;}
		else if(m == 5){d+=2;}
		else if(m == 6){d+=5;}
		else if(m == 8){d+=3;}
		else if(m == 9){d+=6;}
		else if(m == 10){d+=1;}
		else if(m == 11){d+=4;}
		else if(m == 12){d+=6;}
		if(d%7 == 1){cout <<"Thursday"<<endl;}
		else if(d%7 == 2){cout <<"Friday"<<endl;}
		else if(d%7 == 3){cout <<"Saturday"<<endl;}
		else if(d%7 == 4){cout <<"Sunday"<<endl;}
		else if(d%7 == 5){cout <<"Monday"<<endl;}
		else if(d%7 == 6){cout <<"Tuesday"<<endl;}
		else if(d%7 == 0){cout <<"Wednesday"<<endl;}
	}
	return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
using uint = unsigned int;
using lint = long long int;
using ulint = unsigned long long int;
template<class T = int> using V = vector<T>;
template<class T = int> using VV = V< V<T> >;
template<class T, class U> void assign(V<T>& v, int n, const U& a) { v.assign(n, a); }
template<class T, class... Args> void assign(V<T>& v, int n, const Args&... args) { v.resize(n); for (auto&& e : v) assign(e, args...); }


int main() {
  cin.tie(nullptr); ios_base::sync_with_stdio(false);
  V<> d{31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
  V<string> s{"Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"};
  while (true) {
    int x, y; cin >> x >> y, --x, --y;
    if (x == -1) break;
    int a = 0;
    for (int i = 0; i < x; ++i) a += d[i];
    a += y;
    cout << s[(a + 3) % 7] << '\n';
  }
}

C++: #include <iostream>
using namespace std;

int search(int a){
	int month;
	if(a==2) month = 29;
	else if(a%2!=0) month = 31;
	else month = 30;
	return month;
}

char *Whatday(int a,int b){
	int month;
	char *day;
	int date=0;
	
	for(int i=1;i<a;i++){
		date = date+search(i);
	}
	date += b;
	switch(date%7){
		case 0: day ="Wednesdayday"; break;
		case 1: day ="Thursday"; break;
		case 2: day ="Friday"; break;
		case 3: day ="Saturday"; break; 
		case 4: day ="Sunday"; break;
		case 5: day ="Monday"; break;
		case 6: day ="Tuesday"; break;
	}
	return day;
}

int main() {
	int m,d;
	while(1){
		cin >> m >> d;
		if(m==0&&d==0) break;
		cout << Whatday(m,d) << endl;
	}
	return 0;
}

C++: #include <iostream>
using namespace std;

int zeller(int y, int m, int d)
{
	int h;
	int C = y / 100;
	int Y = y % 100;
	int R = (-2 * C) + (C / 4);
	
	if (m <= 2){
		m += 14;
	}
	
	h = d + (26 * ++m / 10) + Y + (Y / 4) + R;
	h = h % 7 + 7;
	h %= 7;
	return (h);
}

int main()
{
	int y = 2004;
	int m, d;
	int h;
	
	while (1){
		
		cin >> m >> d;
		if (m == 0){
			break;
		}
		
		h = zeller(y, m, d);
		
		//cout << h << endl;
		switch (h){
		  case 0:
		    cout << "Saturday";
			break;
			
		  case 1:
		    cout << "Sunday";
			break;
			
		  case 2:
		    cout << "Monday";
			break;
			
		  case 3:
		    cout << "Tuesday";
			break;
			
		  case 4:
		    cout << "Wednesday";
			break;
			
		  case 5:
		    cout << "Thursday";
			break;
			
		 case 6:
		   cout << "Friday";
		   break;
		}
		cout << endl;
	}
	
	return (0);
}

C++: #include <iostream>
#include <string>
using namespace std;

int main()
{
	int m,d;
	int months[]={31,29,31,30,31,30,31,31,30,31,30,31};
	string days[]={"Wednesday","Thursday","Friday","Saturday","Sunday","Monday","Tuesday"};

	while(cin>>m>>d,m)
	{
		int mm=0,cnt=0;
		while(1)
		{
			if(mm+1<m)
			{
				cnt+=months[mm++];
				continue;
			}
			cnt+=d;
			break;
		}
		cout<<days[cnt%7]<<endl;
	}
	return 0;
}

C++: #include<bits/stdc++.h>
#include<vector>
#include<list>
#include<stack>
#include<queue>
#include<algorithm>
#include<map>
using namespace std;

int main(){
    int mod=1000000007;
    int m,d;
    int p[13]={0,31,29,31,30,31,30,31,31,30,31,30,31};
    map<int, string> week;
    week[0]="Monday";
    week[1]="Tuesday";
    week[2]="Wednesday";
    week[3]="Thursday";
    week[4]="Friday";
    week[5]="Saturday";
    week[6]="Sunday";
    for (;;){
        scanf("%d %d",&m,&d);
        if (m==0) break;
        int tmp=3;
        if (m>1) {
            for (int i=1;i<m;i++) {
                tmp=(tmp+p[i])%7;
            }
        }
        cout<<week[(tmp+d-1)%7]<<endl;
    }
    return 0;
}

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

int monthes[]={0,31,29,31,30,31,30,31,31,30,31,30,31};

std::string day[]={"Wednesday","Thursday","Friday","Saturday","Sunday","Monday","Tuesday"};

int main(void){
    int m,d,n;
    while(std::cin>>m>>d){
        if(m==0&&d==0) break;
        n=0;
        int i;
        for(i=1;i<m;i++) n+=monthes[i];
        n+=d;
        std::cout<<day[n%7]<<std::endl;
    }
    return 0;
}