"That's it, Stepan! I've had enough of you!"
Stepan recently returned from a vacation in Japan with a new type of chewing gum. During his first class back at university, he decided to share it with his friend. As soon as the lecturer turned to the board, the two friends eagerly began blowing bubbles on the count of "three - four." Stepan can blow a bubble to its maximum size in t_1 seconds, after which it bursts instantly, and he starts again at the same pace. His friend follows the same process but takes t_2 seconds.
Throughout this time, the lecturer is so focused on proving a theorem that he doesn't notice anything. However, if both bubbles burst at the same time, the noise will catch the lecturer's attention, and the students will certainly get into trouble, especially Stepan, who brought the gum.
Your task is to determine how long the boys can continue blowing bubbles without being noticed by the lecturer.
For example, if t_1 = 2 and t_2 = 3, the sequence of events is as follows:
- Stepan blows a bubble from t = 0 to t = 2, then it bursts, and he starts again from t = 2 to t = 4, and once more from t = 4 to t = 6.
- Stepan's friend blows a bubble from t = 0 to t = 3, and then from t = 3 to t = 6.
At t = 6, both bubbles burst simultaneously, prompting the lecturer to turn around and exclaim, "That's it, Stepan! I've had enough of you!"
**Input format:** The first line of the input contains two integers t_1, t_2 (1 ≤ t_1, t_2 ≤ 10^9).
**Output format:** The output should be a single integer representing the time during which Stepan and his friend can enjoy blowing bubbles without being noticed.