入机门贪心

inp = input().split()
n = int(inp[0])
x = list(map(int, input().split()))
y = list(map(int, input().split()))
x.sort()
y.sort()
flg = 0
for i in range(n):
    if(x[i] > y[i]):
        flg = 1
        break
if flg:
    print("NE")
else :
    print("DA")