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 <string.h>
int main (void){
  int ans;
  char S[3];
  scanf("%s",S);
  if(strcmp(S,"SUN")==0){
    ans=7;
  }
  if(strcmp(S,"MON")==0){
    ans=6;
  }
  if(strcmp(S,"TUE")==0){
    ans=5;
  }
  if(strcmp(S,"WED")==0){
    ans=4;
  }
  if(strcmp(S,"THU")==0){
    ans=3;
  }
  if(strcmp(S,"FRI")==0){
    ans=2;
  }
   if(strcmp(S,"SAT")==0){
    ans=1;
  }
  printf("%d\n",ans);
  return 0;
}