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(){
    int x;
    char b[4];
    scanf("%s",b);
    if(b[0]='S'&&b[1]=='U'&&b[2]=='N')x=7;
    else if(b[0]='M'&&b[1]=='O'&&b[2]=='N')x=6;
    else if(b[0]='T'&&b[1]=='U'&&b[2]=='E')x=5;
    else if(b[0]='W'&&b[1]=='E'&&b[2]=='D')x=4;
    else if(b[0]='T'&&b[1]=='H'&&b[2]=='U')x=3;
    else if(b[0]='F'&&b[1]=='R'&&b[2]=='I')x=2;
    else x=1;
    printf("%d\n",x);
    return 0;
    
}