Problem:
Score : 100 points

Problem Statement

Given is a string S representing the day of the week today.

S is SUN, MON, TUE, WED, THU, FRI, or SAT, for Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, and Saturday, respectively.

After how many days is the next Sunday (tomorrow or later)?

Constraints

S is SUN, MON, TUE, WED, THU, FRI, or SAT.

Input

Input is given from Standard Input in the following format:

S

Output

Print the number of days before the next Sunday.

Sample Input 1

SAT

Sample Output 1

1

It is Saturday today, and tomorrow will be Sunday.

Sample Input 2

SUN

Sample Output 2

7

It is Sunday today, and seven days later, it will be Sunday again.

Solution in C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;

namespace AtCoder
{
	public class ABC
	{
		static int mod = 1000000007;  // 10^9+7

		static void Main(string[] args)
		{
			Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false });


			// int n = int.Parse(Console.ReadLine());
			string s = Console.ReadLine();
			// int[] vs = Console.ReadLine().Split().Select(int.Parse).ToArray();
			switch (s) {
				case "SUN":
					Console.WriteLine(7);
					break;
				case "MON":
					Console.WriteLine(6);
					break;
				case "TUE":
					Console.WriteLine(5);
					break;
				case "WED":
					Console.WriteLine(4);
					break;
				case "THU":
					Console.WriteLine(3);
					break;
				case "FRI":
					Console.WriteLine(2);
					break;
				case "SAT":
					Console.WriteLine(1);
					break;
			}


			Console.Out.Flush();
		}
	}
}