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 word[256];
    scanf("%s",&word);

    char *s1 = "SUN";
    char *s2 = "MON";
    char *s3 = "TUE";
    char *s4 = "WED";
    char *s5 = "THU";
    char *s6 = "FRI";
    char *s7 = "SAT";

    if(strcmp(word,s1)==0)
    {
        printf("7\n");
    }
    else if(strcmp(word,s2)==0)
    {
        printf("6\n");
    }
    else if(strcmp(word,s3)==0)
    {
        printf("5\n");
    }
    else if(strcmp(word,s4)==0)
    {
        printf("4\n");
    }
    else if(strcmp(word,s5)==0)
    {
        printf("3\n");
    }
    else if(strcmp(word,s6)==0)
    {
        printf("2\n");
    }
    else if(strcmp(word,s7)==0)
    {
        printf("1\n");
    }
    
    return 0;

}