๋ฌธ์
https://www.acmicpc.net/problem/11051
ํ์ด
# ๋ฐฑ์ค 11051๋ฒ ๋ฌธ์ - ์ดํญ ๊ณ์ 2
import sys
n, k = map(int, sys.stdin.readline().split())
dp = [[1 for _ in range(k+1)] for _ in range(n+1)]
for i in range(1, k+1):
for j in range(i+1, n+1):
dp[j][i] = (dp[j-1][i-1] + dp[j-1][i]) % 10007
print(dp[n][k])