Check if the given string S is a Panagram or not. A pangram is a sentence containing every letter in the English Alphabet.

Example 1:

Input: S = "Pack mY box witH fIve dozen 
            liquor jugs"
Output: 1
Explanation: Given string contains all 
English Alphabets.

Example 2:

Input: S = "geeksFORgeeks"
Output: 0
Explanation: Given string does not contain 
all English Alphabets.

Your Task:
You don't need to read input or print anything. Your task is to complete the function isPanagram() which takes the string as inputs and returns 1 if the given string is panagram, otherwise 0.

Expected Time Complexity: O(N)
Expected Auxiliary Space: O(constant)

Constraints:
1 ≤ |S| ≤ 10⁵