codeforces_problem_572_A

codeforces_problem_572_A.py

#### home exercise ####
# http://codeforces.com/problemset/problem/572/A

# wrong test case 6:
# Input
# 3 3
# 1 1
# 1 2 3
# 1 2 3
# Output
# NO
# Answer
# YES

na, nb = map(int, input().split())
k, m  = map(int, input().split())
item_list_na = list(map(int, input().split()))
item_list_nb = list(map(int, input().split()))

def process(array_a, array_b):
    result = False
    for i in array_a:
        for j in array_b:
            if i < j:
                result = True
            else:
                result = False
                return result
    return result

if(process(item_list_na[0:k], item_list_nb[0:m]) == False):
    print('NO')
else:
    print('YES')

#### home exercise ####