SHA-256

Given a string $S$, write a program that computes the SHA-256 hash of $S$.

The hash is computed over the ASCII bytes of $S$.

The first line contains the string $S$. $S$ consists only of uppercase letters, lowercase letters, and digits, and its length is at most $50$.

Print the SHA-256 hash of $S$ on the first line, as 64 lowercase hexadecimal digits.