<< 80008001‍8002‍8003‍8004‍8005‍8006‍8007‍8008‍8009‍>>

<< 80008010‍8020‍8030‍8040‍8050‍8060‍8070‍8080‍8090>>

<< 80008100‍8200‍8300‍8400‍8500‍8600‍8700‍8800‍8900‍>>

<< 0100020003000400050006000700080009000>>

8000是介于7999与8001间的自然数。