QED.

QED.

qed.

qed.

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED

QED