#-*-coding:utf8-*-

#author : Lenovo

#date: 2018/8/23

# k = raw_input() #百度

# n = int(raw_input())

# length = len(k)

# dp = [0] * n

# if k[0] == 'X':

# for d in range(10):

# _ = d % n

# dp[_] += 1

# else:

# dp[int(k[0]) % n] = 1

#

# for i in range(1, length):

# new_dp = [0] * n

# for j in range(n):

# if dp[j]:

# if k[i] == 'X':

# for d in range(10):

# new_j = (j*10+d) % n

# new_dp[new_j] += dp[j]

# else:

# new_j = (j*10+int(k[i])) % n

# new_dp[new_j] += dp[j]

# dp = new_dp

#

# print(dp[0])

# dp = [0] * 10

# print(dp)

def findContentChildren(g, s):

"""

:type g: List[int]

:type s: List[int]

:rtype: int

"""

count=0

g=sorted(g)

s=sorted(s)

while len(g) and len(s):

if s[0]<g[0]:

s.pop(0)

else:

s.pop(0)

g.pop(0)

count+=1

return count

res=findContentChildren([10,9,8,7],

[5,6,7,8])

print(res)

ss=[1,6,4,5]

sss=[1,4,7,2]

print(sorted(ss))

print(sorted(sss))