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 <iostream>
#include <cmath>
#include <vector>


using namespace std;
#define LENGTH 10

void printDay(int num){
  switch(num){
  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;
  }
}
    
    

int main(){
  int month, day;
  int days[12]={31,29,31,30,31,30,31,31,30,31,30,31};
  while(cin >> month >> day){
    int d=3;
      if(month==0){
      break;
    }

    for(int i=0;i<month-1;i++){
      d+=days[i];
      d = d%7;
    }

    for(int i=1;i<day;i++){
      d+=1;
      d = d%7;
    }
    printDay(d);
  }
}

C++: 
#define _USE_MATH_DEFINES
#include <cstdio>
#include <iostream>
#include <algorithm>
#include <cmath>
#include <string>
#include <cstring>
#include <vector>
#include <map>
#include <utility>
#include <complex>
#include <stack>
#include <climits>

using namespace std;

double sq(double x){return x*x;}

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

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

int main(){
	for (int i = 0; i < 12; i++)
	{
		t[i+1] += t[i];
	}
	int m,d;
	while(~scanf("%d %d",&m,&d),(m||d)){
		int x = t[m-1] + d + 2;
		cout << b[x % 7] << endl;
	}

	return 0;
}

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

int m,d;
int data[] = {31,29,31,30,31,30,31,31,30,31,30,31};
string day[] = {"Thursday","Friday","Saturday","Sunday","Monday","Tuesday","Wednesday"};

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

		for(int i = 0; i < m - 1; i++){
			d+=data[m];
		}
		cout << day[d%7-1] << endl;
	}
}

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

int main() {
  int month,day,total,weekday;
  while(cin >> month >> day) {
    if((month == 0)&&(day == 0)) break;
    total = 0;
    for(int i=1;i < month + 1;i++) {
      if(i == month) {
        total += day;
      }
      else if(i != month) {
        if((i == 1)||(i == 3)||(i == 5)||(i == 7)||(i == 8)||(i == 10)||(i == 12))
          total += 31;
        else if((i == 4)||(i == 6)||(i == 9)||(i == 11))
          total += 30;
        else if(i == 2)
          total += 29;
      }
    }
    weekday = total % 7;
    if(weekday == 0)
      cout << "Wednesday" << endl;
    else if(weekday == 1)
      cout << "Thursday" << endl;
    else if(weekday == 2)
      cout << "Friday" << endl;
    else if(weekday == 3)
      cout << "Saturday" << endl;
    else if(weekday == 4)
      cout << "Sunday" << endl;
    else if(weekday == 5)
      cout << "Monday" << endl;
    else if(weekday == 6)
      cout << "Tuesday" << endl;
  }
}

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

using namespace std;

int Month;
int Day;

char *data[] ={
 "Monday",
 "Tuesday",
 "Wednesday",
 "Thursday",
 "Friday",
 "Saturday",
 "Sunday"
};
int days[12] = {31,29,31,30,31,30,31,31,30,31,30,31};

int ans[12][31];
int d = 3;
int main()
{   
    for(int i = 0;i < 12;i++){
      for(int j = 0;j < days[i];j++){
	ans[i][j] = d%7;
	d++;
      }
    }
    while(cin >>Month>>Day){
      if(Month ==0)
	break;
    cout <<data[ans[Month-1][Day-1]]<<endl;
    }
  return 0;
}

C++: #include <iostream>
using namespace std;
int day[]={0,31,29,31,30,31,30,31,31,30,31,30,31};
int main()
{
	int m,d;
	while(cin>>m>>d){
		if(!m)break;
		for(int i=1;i<m;i++)d+=day[i];
		if(d%7==0)cout<<"Wednesday"<<endl;
		else 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;
	}
    return 0;
}

C++: #include<iostream>
#include <stdio.h>
#include <string>
#include <vector>
using namespace std;
int main(){
	while(1){int a,b;
	cin>>a>>b;
	if(a==0){
	break;}
	if(a==12){b+=335;}else
	if(a==11){b+=305;}else
	if(a==10){b+=274;}else
	if(a==9){b+=244;}else
	if(a==8){b+=213;}else
	if(a==7){b+=182;}else
	if(a==6){b+=152;}else
	if(a==5){b+=121;}else
	if(a==4){b+=91;}else
	if(a==3){b+=60;}else
	if(a==2){b+=31;}
	if(b%7==1){
	cout<<"Thursday"<<endl;}else
		if(b%7==2){
	cout<<"Friday"<<endl;}else
	if(b%7==3){
	cout<<"Saturday"<<endl;}else
		if(b%7==4){
	cout<<"Sunday"<<endl;}else
	if(b%7==5){
	cout<<"Monday"<<endl;}else
	if(b%7==6){
	cout<<"Tuesday"<<endl;}else{
	cout<<"Wednesday"<<endl;}}
	return 0;}

C++: #include <cstdio>
#include <cstring>
#include <algorithm>
#include <string>
#include <cmath>
#include <stack>
#include <vector>
#include <map>
#include <set>
#include <iostream>


using namespace std;

int main()
{
	int m, d;
	while (true)
	{
		scanf("%d %d", &m, &d);
		if (m == 0 && d == 0)
			break;

		int total = d;
		for (int i = 1; i < m; ++i)
		{
			if (i == 2)
				total += 29;
			else if (i & 1 || i == 8)
				total += 31;
			else
				total += 30;
		}
		char* days[] = { "Monday", "Tuesday", "Wednesday", "Thursday",
			"Friday", "Saturday", "Sunday" };
		puts(days[(total+2)%7]);
	}
	return 0;
}

C++: #include<iostream>
#include<stdio.h>
#include<math.h>
#include<vector>
using namespace std;
int main() {
	int x, y,i;
	vector<int> s;
	s.resize(12);
	s[0] = 0;
	s[1] = 31;
	s[2] = 29;
	s[3] = 31;
	s[4] = 30;
	s[5] = 31;
	s[6] = 30;
	s[7] = 31;
	s[8] = 31;
	s[9] = 30;
	s[10] = 31;
	s[11] = 30;
	while (cin >> x >> y) {
		if (x == 0)break;
		for (i = 0; i < x; i++) {
			y += s[i];
		}
	    if (y % 7 == 1) {
			cout << "Thursday" << endl;
		}
		else if (y % 7 == 2) {
			cout << "Friday" << endl;
		}
		else if (y % 7 == 3) {
			cout << "Saturday" << endl;
		}
		else if (y % 7 == 4) {
			cout << "Sunday" << endl;
		}
		else if (y % 7 == 5) {
			cout << "Monday" << endl;
		}
		else if (y % 7 == 6) {
			cout << "Tuesday" << endl;
		}
		else if (y % 7 == 0) {
			cout << "Wednesday" << endl;
		}
	}
	return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
int main(){
  int s,n,m,p[12]={31,29,31,30,31,30,31,31,30,31,30,31},i;
  while(cin>>n>>m,n){
    for(s=i=0;i<n-1;i++)s+=p[i];
      s+=m;
    if(s%7==0)cout<<"Wednesday"<<endl;
    else if(s%7==1)cout<<"Thursday"<<endl;
    else if(s%7==2)cout<<"Friday"<<endl;
    else if(s%7==3)cout<<"Saturday"<<endl;
    else if(s%7==4)cout<<"Sunday"<<endl;
    else if(s%7==5)cout<<"Monday"<<endl;
    else cout<<"Tuesday"<<endl;
  }
}