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>
#include<string.h>
 
int main(){
	int a;
  	char s[26]="abcdefghijklmnopqrstuvwxyz";
  	char h[10002]; 	
  	scanf("%d %s",a,h);
	
  	for(int i=0; i<strlen(h); i++){
      for(int j=0; j<26; j++){
      	if(h[i]==s[j]){
        	printf("%c", h[i+a]);
        }
      }
    }
  
  	printf("\n");
  
  return 0;
}