In the greenhouse, they planted different varieties of orchids in 2 rows. Flowers of one variety were placed at a distance of A cm between plants, and the other - at B cm. How far will the orchids of both varieties be next to each other? 
Write the solution to the problem as a function solve(A, B) that returns the answer. You don't need to enter or withdraw anything!
Examples
| # | 
Input | 
Output | 
| 1 | 
15 18 | 
90 | 
 Запрещенные операторы:lcm;gcd