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: Wrong Answer)

#include<stdio.h>
int main(){
char* A;
  char* SUN, MON, TUE, WED, THU, FRI, SUT;
scanf("%s", &A);
if(A = SUN){printf("7");}
if(A = MON){printf("6");}
if(A = TUE){printf("5");}
if(A = WED){printf("4");}
if(A = THU){printf("3");}
if(A = FRI){printf("2");}
if(A = SUT){printf("1");}
return 0;
}