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 JavaScript (node.js v5.12) (judge verdict: Wrong Answer)

function Main(input) {
	// 1行目がinput[0], 2行目がinput[1], …に入る
  	var result;
  	switch (input){
        case 'SUN':
        result = '7';
        break;
        case 'MON':
        result = '6';
        break;
        case 'TUE':
        result = '5';
        break;
        case 'WED':
        result = '4';
        break;
        case 'THU':
        result = '3';
        break;
        case 'FRI':
        result = '2';
        break;
        case 'SAT':
        result = '1';
        break;
    }
	console.log(result);
}
//*この行以降は編集しないでください（標準入出力から一度に読み込み、Mainを呼び出します）
Main(require("fs").readFileSync("/dev/stdin", "utf8"));