关于#python#的问题，请各位专家解答！
def f(n, m):
if m == 0 or n == m:
return 1
else:
return f(n - 1, m - 1) + f(n - 1, m)
a, b = map(int, input(">>>").split())
if a < b:a, b = b, a
print(f(a, b))
def f(n, m):
if m == 0 or n == m:
return 1
else:
return f(n - 1, m - 1) + f(n - 1, m)
a, b = map(int, input(">>>").split())
if a < b:a, b = b, a
print(f(a, b))