Errors

use_warnings

Math::NumSeq::AlphabeticalLength, Math::NumSeq::AlphabeticalLengthSteps, Math::NumSeq::SevenSegments

valid_signature

gpg: Signature made Sun 12 Jul 2020 08:54:29 AM JST
gpg:                using RSA key F8D0B4E7D2D21191
gpg: Can't check signature: No public key