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: Runtime Error)

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main()
{
    char s[3];
    int i=0,l=0;
    scanf("%s", &s);
    if(strcmp(s[3],"SUN")==0){
        printf(7);
    }    else if(strcmp(s[3],"SAT")==0){
        printf(1);
    }    else if(strcmp(s[3],"MON")==0){
        printf(6);
    }    else if(strcmp(s[3],"TUS")==0){
        printf(5);
    }    else if(strcmp(s[3],"WEN")==0){
        printf(4);
    }   else if(strcmp(s[3],"THR")==0){
        printf(3);
    }   else if(strcmp(s[3],"FRI")==0){
        printf(2);
    }
    return 0;
}