Let and be real numbers such that What is the largest possible value of ​

Let $a_1,a_2,$ and $a_3$ be real numbers such that $|a_1 - a_2| + |a_2 - a_3| + |a_3 - a_4| + |a_4 - a_5| + \dots + |a_9 - a_{10}| + |a_{10} - a_1| = 500.$
What is the largest possible value of $|a_1 - a_6|?$