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(void) {
	char S[3];
	scanf("%s",S);
	if(S[2]=='T'){
		printf("1");
	}
	if(S[0]=='F'){
		printf("2");
	}	if(S[2]=='T'){
		printf("1");
	}	if(S[1]=='H'){
		printf("3");
	}	if(S[0]=='W'){
		printf("4");
	}	if(S[2]=='E'){
		printf("5");
	}	if(S[1]=='O'){
		printf("6");
	}	if(S[0]=='S' && S[2]=='N'){
		printf("7");
	}
	return 0;
}