Press the instructed key.

Act as fast and accurately as possible.

The instruction is to press K, you press <<K>> in 4997 ms. That is correct.
The instruction is to press K, you press <<K>> in 535 ms. That is correct.
The instruction is to press F, you press <<F>> in 530 ms. That is correct.
The instruction is to press J, you press <<J>> in 898 ms. That is correct.
The instruction is to press D, you press <<J>> in 410 ms. That is incorrect.
The instruction is to press F, you press <<F>> in 594 ms. That is correct.
The instruction is to press F, you press <<F>> in 578 ms. That is correct.
The instruction is to press K, you press <<J>> in 381 ms. That is incorrect.
The instruction is to press F, you press 