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(void){
  char str[3];
  scanf("%s",str);

  if(str[0] == 'S'){
   if(str[1] == 'A'){
     printf("1");
   }
   else if(str[1] == 'U'){
       printf("7");
   }
  }
  else if(str[0] == 'M'){
    printf("6");
  }
  else if(str[0] == 'T'){
    if(str[1] == 'U'){
      printf("5");
    }
    else if(str[1] == 'H'){
      printf("3");
    }
  }
  else if(str[0] == 'W'){
    printf("4");
  }
  else if(str[0] == 'F'){
    printf("2");
  }

  return 0;
}