import java.io.; import java.util.; import java.security.; import java.nio.charset.;

public class Solution {

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    String originalString = sc.nextLine();

    try {
        MessageDigest digest = MessageDigest.getInstance("SHA-256");
        byte[] encodedhash = digest.digest(
            originalString.getBytes(StandardCharsets.UTF_8));
        System.out.println(bytesToHex(encodedhash));
    }
    catch (NoSuchAlgorithmException e) {
        System.out.println(e);
    }
}

private static String bytesToHex(byte[] hash) {
    StringBuilder hexString = new StringBuilder(2 * hash.length);
    for (int i = 0; i < hash.length; i++) {
        String hex = Integer.toHexString(0xff & hash[i]);
        if(hex.length() == 1) {
            hexString.append('0');
        }
        hexString.append(hex);
    }
    return hexString.toString();
}

}