write a go solution for Description:
Least common multiple (LCM) of two numbers is the smallest positive integer which is divisible by both of them. You are given integers a and b. Calculate their LCM.

Input Format:
The input contains two integers a and b (1 ≤ a, b ≤ 103), separated by a single space.

Output Format:
Output LCM(a, b).

Note:
None. Output only the code with no comments, explanation, or additional text.