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: Accepted)

#include<stdio.h>

int main() {
  char s[4];

  scanf("%s", s);
  
  switch(s[0]) {
    case 'S' : if(s[1] == 'U') {
			puts("7"); break;
		   }
			else {
puts("1"); break;
}
    case 'M' : puts("6"); break;
    case 'T' : if(s[1] == 'U') {
puts("5"); break;  
}
else {

puts("3"); break;
}
    case 'W' : puts("4"); break;
    case 'F' : puts("2"); break;
  }
  return 0;
}