An arrow key is a key with a arrow on it at the bottom of you key board.

An arrow key is a key with a arrow on it at the bottom of you key board.

The down arrow key.

The down arrow key.

The down arrow key.

The down arrow key.

The down arrow key.

The down arrow key.

The down arrow key.

The down arrow key.

The down arrow key.

The down arrow key.

The down arrow key.

This is how:

Press the "Up" arrow key 2 times,

then press the "Left" arrow key 3 times,

then press the "Down" arrow key 1 time,

then press the "Left" arrow key 1 time,

then press the "Down" arrow key 1 time,

then press the "Right" arrow key 1 time,

then press the "Up" arrow key 1 time,

then press the "Right" arrow key 1 time,

then press the "Down" arrow key 1 time,

then press the "Left" arrow key 1 time,

then press the "Down" arrow key 3 times,

then press the "Right" arrow key 1 time,

then press the "Down" arrow key 1 time and you're done!

The shorthand version of this answer (18 moves) is

U2 L3 D L D R U

R D L D3 R D

just press down arrow key and right arrow key and L and left arrow key and down arrow key andL