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>
void main()
{
  char s[4];
  int i;
  for(i=0;i<3;i++)
  {
    scanf("%c",&s[i]);
  }
if(s[0]=='M')
  printf("6");
  else if(s[0]=='W')
    printf("4");
  else if(s[0]=='F')
     printf("2");
  else if(s[0]=='S')
  {
     if(s[1]=='U')
       printf("7");
    else
      printf("1");
  }
  else if(s[0]=='T')
     {
     if(s[1]=='U')
       printf("5");
    else
      printf("3");
  }
}