Burgers

A burger machine has been installed at ADA University. To produce one burger, one bun and one cutlet should be put into the machine. Huseyn has $n$ buns and $m$ cutlets. What is the largest number of burgers can make Huseyn?

Input

Two integers $n$ and $m(n,m\le 10^9)$.

Output

Print the maximum number of burgers that Huseyn can make.

Examples