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)

#include<bits/stdc++.h>

using namespace std;

string str;

int main () {
	ios::sync_with_stdio(0), cin.tie(0);
	cin >> str;
	if (str[0] == 'S') {
		if (str[1] == 'U')
			cout << 7;
		else
			cout << 1;
	}
	if (str[0] == 'M')
		cout << 6;
	if (str[0] == 'T' && str[1] == 'U')
		cout << 5;
	if (str[0] == 'W')
		cout << 4;
	if (str[0] == 'T' && str[1] == 'H')
		cout << 3;
	if (str[0] == 'F')
		cout << 2;
}