One day, Putin received a coded message from an Russian spy claiming it came directly from President Obama.

It read: 370HSSV-0773H.

The spy was stumped, so he sent it to his boss at the agency.

His boss was stumped too, so he sent it to the Chinese for decoding.

The Chinese couldn't solve it either, so they asked the Germans.

The Germans, having received this same message during WWII from the Americans, suggested turning it upside down
.