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
   Takatan */

#include<stdio.h>
#include<string.h>
int main(void){
    char day[4];

    scanf( "%s" , day);
    if(strcmp(day, "SUN")==0){ /* 出力曜日ごとに分ける */
        printf( "7" );
    }else if(strcmp(day, "MON")==0){
        printf( "6");
    }else if(strcmp(day, "TUE")==0){
        printf( "5");
    }else if(strcmp(day, "WED")==0){
        printf( "4");
    }else if(strcmp(day, "THU")==0){
        printf( "3");
    }else if(strcmp(day, "FRI")==0){
        printf( "2");
    }else if(strcmp(day, "SAT")==0){
        printf( "1");
    }
    printf( "\n" ); /* 改行文字出力 */
    return 0;
}