If two numbers are randomly taken out in the interval (0, 1), the probability that the sum of the two numbers is less than 65 is zero______ ．

If two numbers are randomly taken out in the interval (0, 1), the probability that the sum of the two numbers is less than 65 is zero______ ．

Let the two numbers be x and Y respectively, we can get 0 ＜ x ＜ 1 and 0 ＜ y ＜ 1. The area of the point (x, y) satisfying the condition is the interior of the square whose abscissa and ordinate are between (0, 1), that is, the interior of the square oabc as shown in the figure, and its area is s = 1 × 1 = 1. If the sum of the two numbers is less than 65, that is, x + y ＜ 65, the corresponding area is