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)

//ABC146 A - Can't Wait for Holiday 
#include<stdio.h>
#include<string.h>

int main(void){
    char day[3];
    int i = 7;
    scanf("%s",day);
    if(strcmp(day,"SUN")==0){
        printf("%d",i);
    }else if(strcmp(day,"MON")==0){
        printf("%d",i-1);
    }else if(strcmp(day,"TUE")==0){
        printf("%d",i-2);
    }else if(strcmp(day,"WED")==0){
        printf("%d",i-3);
    }else if(strcmp(day,"THU")==0){
        printf("%d",i-4);
    }else if(strcmp(day,"FRI")==0){
        printf("%d",i-5);
    }
    else if(strcmp(day,"SAT")==0){
        printf("%d",i-6);
    }
    return 0;

}