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()
{
    char day[3];
    scanf("%s",day);
    if(*day=='M')
    {
        printf("6");
    }
    else if(*day=='W')
    {
        printf("4");
    }
    else if(*day=='F')
    {
        printf("2");
    }
    else if(*day=='T')
    {
        if(*(day+1)=='H')
        {
            printf("3");
        }
        else
        {
            printf("5");
        }
    }
    else
    {
        if(*(day+1)=='A')
        {
            printf("1");
        }
        else
        {
            printf("7");
        }
    }
    return 0;
}