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)

"use strict";
    
const main = arg => {
    arg = arg.trim().split("\n");
    const S = arg[0];
    
    const array = ["SUN","MON","TUE","WED","THU","FRI","SAT"];
    
    if(S === "SUN") {
        console.log(7)   
    }
    
    if(S === "MON") {
        console.log(6)   
    }
    
    if(S === "TUE") {
        console.log(5)   
    }
    
    if(S === "WED") {
        console.log(4)   
    }
    
    if(S === "THU") {
        console.log(3)   
    }
    
    if(S === "FRI") {
        console.log(2)   
    }
    
    if(S === "SAT") {
        console.log(1)   
    }
}
main(require('fs').readFileSync('/dev/stdin', 'utf8'));