The intval of 123abc is: 123	md5 is 51d2cfddc5ad35aee8daf0080f797cfb
The intval of 123-456 is: 123	md5 is 7088d86c22dc86cae9d6eb65a90273f4
The intval of abc123 is: 0	md5 is b9086ca69d9fd58f2e9c7d265dfc09da
The intval of 123 456 is: 123	md5 is efd305e59f8fc8908150b0b568a7a667