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(void) {
    char S[10];
    scanf("%s", S);
    if (S[0]=='S' && S[1]=='U') {
        printf("%d", 7);
        return 0;
    }
    if (S[0]=='M') {
        printf("%d", 6);
        return 0;
    }
    if (S[0]=='T' && S[1]=='U') {
        printf("%d", 5);
        return 0;
    }
    if (S[0]=='W') {
        printf("%d", 4);
        return 0;
    }
    if (S[0]=='T' && S[1]=='H') {
        printf("%d", 3);
        return 0;
    }
    if (S[0]=='F') {
        printf("%d", 2);
        return 0;
    }
    if (S[0]=='S' && S[1]=='A') {
        printf("%d", 1);
        return 0;
    }
}