(CNN) - In its "Eleven Everlasting Dollars" contest, Taco Bell says it will give lucky winners free food for life.
They will release 11 altered dollar bills in 11 U.S. cities. Each winning bill will have a special serial number.
If you find it and claim your prize, Taco Bell promises a "lifetime" of free food.
Fans can track where bills might be found on the Taco Bell website.
USA Today reports the odds of finding one of the winning bills are about one in 2.4 billion.
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