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 (GCC 5.4.1) (judge verdict: Wrong Answer)

#include<stdio.h>
int main(){
  char s[4];
  int d = 0;
  scanf("%s", s);
  switch(s[0]){
    case 'S':
      if(s[1] == 'A') d = 1;
      else d = 7;
      break;
    case 'F':
      d = 2;
      break;
    case 'T':
      if(s[1] == 'R') d = 3;
      else d = 5;
      break;
    case 'W':
      d = 4;
      break;
    case 'M':
      d = 6;
      break;
  }
  printf("%d\n", d);
  return 0;
}