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: Wrong Answer)

#include <bits/stdc++.h>
#define rep(i,n) for(int i=0; i<n; i++)
typedef long long ll;
using namespace std;

int main(){
	char s[3];
	cin >> s;
	int ans;
	if(s == "SUN"){ ans = 7;}
	else if(s == "MON"){ans = 6;}
	else if(s == "TUE"){ans = 5;}
	else if(s == "WED"){ans = 4;}
	else if(s == "THU"){ans = 3;}
	else if(s == "FRI"){ans = 2;}
	else if(s == "SAT"){ans = 1;}
	cout << ans << endl;
	return 0;
}