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++14 (GCC 5.4.1) (judge verdict: Accepted)

/*
	Created by Faisal Ahmed
*/

#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long int ll;
typedef long double ld;

int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);cout.tie(NULL);
	
	string str;
	
	cin >> str;
	
	if(str == "SAT"){
		cout << 1 << endl;
	}
	else if(str == "SUN"){
		cout << 7 << endl;
	}
	else if(str == "MON"){
		cout << 6 << endl;
	}
	else if(str == "TUE"){
		cout << 5 << endl;
	}
	else if(str == "WED"){
		cout << 4 << endl;
	}
	else if(str == "THU"){
		cout << 3 << endl;
	}
	else if(str == "FRI"){
		cout << 2 << endl;
	}
	
	return 0;
}