python3 双指针模板题
n, m = map(int, input().split())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
la, lb = 0, 0
while la < n and lb < m:
if a[la] == b[lb]:
la += 1
lb += 1
else:
lb += 1
if la == n:
print("Yes")
else:
print("No")