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 a[3];
scanf("%s",a,3);
if(a[0]=="S" && a[1]=="U") printf("7");
else if(a[0]=="S" && a[1]=="A") printf("1");
else if(a[0]=="F") printf("2");
 else if(a[0]=="T" && a[1]=="H") printf("3"); 
 else if(a[0]=="W") printf("4"); 
  else if(a[0]=="T" && a[1]=="U") printf("5");
  else if(a[0]=="") printf("6");
  
  
  
return 0;
}