subdomain for attaching dns cname on S3 static hosting and bucket name

S3 bucketname : aws.aaa.com (make public, everyone has a read permission)

aws.aaa.com cname aws.aaa.com.s3.ap-northeast-2.amazonaws.com

S3 bucketname : yoursubdomain

yoursubdomain’s cname must be yoursubdomain.s3.yours3resion.amanzonaws.com