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)

'use strict'
function Main(input) {
  if(input == "SUN"){
    console.log("7");
  }else if(input == "MON"){
    console.log("6");
  }else if(input == "TUE"){
    console.log("5");
  }else if(input == "WED"){
    console.log("4");
  }else if(input == "THU"){
    console.log("3");
  }else if(input == "FRI"){
    console.log("2");
  }else if(input == "SAT"){
    console.log("1");
  }
}

Main(require("fs").readFileSync("/dev/stdin", "utf8"));