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>
#include <string.h>
int main (void)
{
	char s[10];
	scanf("%s",s);
	if (s[0] == 'M')
		printf("6\n");
	else if(s[0] =='T' && s[1] == 'U')
		printf("5\n");
	else if(s[0] == 'W')
		printf("4\n");
	else if(s[0] == 'T')
		printf("3\n");
	else if(s[0] == 'F')
		printf("2\n");
	else if(s[0] == 'S' && s[1] == 'A')
		printf("1\n");
	else
		printf("7\n");
	return(0);
}