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];
	int n;

	scanf("%s",s);

	if(s[0] == 'S' && s[1] == 'U')
		n=7;

	if(s[0] == 'S' && s[1] == 'A')
		n=1;

	if(s[0] == 'F')
		n=2;

	if(s[0] =='T' && s[1]=='H')
		n=3;

	if(s[0] =='W')
		n=4;

	if(s[0] =='T' && s[1]=='U')
		n=5;

	if(s[0] =='M')
		n=6;

	printf("%d\n", n);
	return 0;
}