import sys
from math import sqrt, pi, sin
inp = lambda : sys.stdin.readline()[:-1]
mii = lambda x = " ": [*map(int,input().split(x))]
mfi = lambda x = " ": [*map(float,input().split(x))]
ii = lambda : int(input())
n = ii()
A = sorted(mii())
B = sorted(mii())
for i in range(n):
if A[i] > B[i]:
print("NE")
break
else:
print("DA")