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>
#include<stdlib.h>
#include<string.h>
int main()
{
   int x;
  char s[3];
  gets(s);
  char s1[]="MON",s2[]="TUE",s3[]="WED",s4[]="THU",s5[]="FRI",s6[]="SAT",s7[]="SUN";
  if(strcmp(s,s1)==0)
  {
    printf("6");
  }
  if(strcmp(s,s2)==0)
  {
    printf("5");
  }
  if(strcmp(s,s3)==0)
  {
    printf("4");
  }
  if(strcmp(s,s4)==0)
  {
    printf("3");
  }
  if(strcmp(s,s5)==0)
  {
    printf("2");
  }
  if(strcmp(s,s6)==0)
  {
    printf("1");
  }
  if(strcmp(s,s7)==0)
  {
    printf("7");
  }
  return 0;
}