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 9.2.1) (judge verdict: Accepted)

#include<stdio.h>

int main(void){

char s[3];

scanf("%s",&s);

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


  return 0;
}