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 (Clang 3.8.0) (judge verdict: Wrong Answer)

#include <stdio.h>

int main()
{
	char S;
	char week[7] = {"SUN", "MON", "TUE", "WED", "THU", "FRI", "SAT"};
		
	scanf("%s",S);
	if(S == week[0]) printf("7");
	else if(S == week[1]) printf("6");
	else if(S == week[2]) printf("5");
	else if(S == week[3]) printf("4");
	else if(S == week[4]) printf("3");
	else if(S == week[5]) printf("2");
	else if(S == week[6]) printf("1");
	
	return 0;
}