Unexpected Input

Here is the program again.

PRINT "Enter 1 if you are hungry; 0 if you are not"
INPUT HUNGER
'
IF HUNGER > 0 THEN
  PRINT "Buy Cookies"    ' true branch
END IF
'
PRINT "Keep Shopping"     ' this statement is always done
END

The relational expression (the question) in the IF statement tests if HUNGER is greater than zero. If the user enters "1" the expression is TRUE and the "Buy Cookies" branch will execute. But any number greater than zero will also work.