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 9.2.1) (judge verdict: Accepted)

#include<stdio.h>
int main(void){
  char s[3];
  scanf("%s",&s);
  if(s[0]=='S'&&s[1]=='U'){printf("%d",7);}
  else if(s[0]=='M'){printf("%d",6);}
  else if(s[0]=='T'&&s[1]=='U'){printf("%d",5);}
  else if(s[0]=='W'){printf("%d",4);}
  else if(s[0]=='T'&&s[1]=='H'){printf("%d",3);}
  else if(s[0]=='F'){printf("%d",2);}
  else {printf("%d",1);}
  return 0;
}