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>

int main(){

    char s[3];
    scanf("%s", s);

    if(s[0] == 'S' && s[1] == 'U' && s[2] == 'N'){printf("7");}
    else if(s[0] == 'M' && s[1] == 'O' && s[2] == 'N'){printf("6");}
    else if(s[0] == 'T' && s[1] == 'U' && s[2] == 'E'){printf("5");}
    else if(s[0] == 'W' && s[1] == 'E' && s[2] == 'D'){printf("4");}
    else if(s[0] == 'T' && s[1] == 'H' && s[2] == 'U'){printf("3");}
    else if(s[0] == 'F' && s[1] == 'R' && s[2] == 'I'){printf("2");}
    else if(s[0] == 'S' && s[1] == 'A' && s[2] == 'T'){printf("1");}

    return 0;
}