Trigonometric Functions

Problem Description

Input a set of Pythagorean triple $a, b, c$ ($a \neq b \neq c$), and output the sine of its smaller acute angle in fraction form (reduced to lowest terms).

(Terminology: a Pythagorean triple is a set of three positive integers that can form the three sides of a right triangle, satisfying $a^2 + b^2 = c^2$. The sine of an angle is the ratio of the opposite side to the hypotenuse in a right triangle. The sine of the smaller acute angle equals the shortest leg divided by the hypotenuse.)

Input Format

One line containing three positive integers, the Pythagorean triple $a, b, c$ (in no particular order).

Output Format

One line containing a fraction, the sine of the smaller acute angle.

Sample Input

3 5 4

Sample Output

3/5

Constraints

$a, b, c$ are positive integers, and $1 \le a, b, c \le 10^9$.