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)

//g++ test.cpp -o test.out
//入出力：http://kaitei.net/cpp/iostream/
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <cassert>
#include <algorithm>
#include <functional>
#include <iostream>
#include <iomanip>
using namespace std;

char day[3];

int main(){
	cin >> day;
	if(strcmp(day,"SUN")==0){
		cout << 7;
	}else if(strcmp(day,"MON")==0){
		cout << 6;
	}else if(strcmp(day,"TUE")==0){
		cout << 5;
	}else if(strcmp(day,"WED")==0){
		cout << 4;
	}else if(strcmp(day,"THU")==0){
		cout << 3;
	}else if(strcmp(day,"FRI")==0){
		cout << 2;
	}else if(strcmp(day,"SAT")==0){
		cout << 1;
	}
	return 0;
}