What is the action replay code to get a Groudon in Pokemon diamond?

USA code:

94000130 fffb0000

D5000000 0000017f

B21c4d28 00000000

B0000004 00000000

C0000000 0000000b

D7000000 00024620

Dc000000 00000006

D2000000 00000000 Hold select while walking into grass