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>
#include<stdlib.h>
#include<math.h>
#define PI 3.141592653589793
#define MOD 1000000007

int main(){
	char s[4];
	scanf("%s", s);
	if(s[0] == 'S'){
		if(s[1] == 'U') printf("7\n");
		else printf("1\n");
	}
	else if(s[0] == 'M') printf("6\n");
	else if(s[0] == 'T'){
		if(s[1] == 'U') printf("5\n");
		else printf("3\n");
	}
	else if(s[0] == 'W') printf("4\n");
	else if(s[0] == 'F') printf("2\n");
	

	return 0;
}