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: Accepted)

process.stdin.resume();
process.stdin.setEncoding('utf8');
 
var lines = [];
var reader = require('readline').createInterface({
    input: process.stdin,
    output: process.stdout
});
reader.on('line', (line) => {
    // ここで入力を処理する
    lines.push(line);
});
reader.on('close', () => {
    // ここで出力する
    for(var i =0; i<lines.length; i++){
      	switch(lines[i]){
    case 'SUN':
        console.log('7');
        break;
 
 
    case 'MON':
        console.log('6');
        break;
 
 
    case 'TUE':
        console.log('5');
        break;
    

    case 'WED':
        console.log('4');
        break;
 
 
    case 'THU':
        console.log('3');
        break;
 
 
    case 'FRI':
        console.log('2');
        break;


    case 'SAT':
        console.log('1');
        break;
	}
    }
});