Problems
Party
Party
How many ways are there to choose $k$ out of $n$ participants in the summer math camp, each of whom will receive kefir? Print the answer modulo $9929$.
\InputFile
Two integers $n$ and $k\:(0 \le k \le n \le 500)$.
\OutputFile
Print the number of ways modulo $9929$.
Input example #1
6 3
Output example #1
20
Input example #2
7 1
Output example #2
7