N, X = map(int, input().split())
L = []
for i in range(X):
    S = list(map(float, input().split()))
    L.append(S)
Y = list(zip(*L))
for i in range(len(Y)):
    arg = sum(Y[i]) / N

8476adaf645b8352550d287bdec9e39dd598f3b4
<mask token>

<mask token>
for i in range(X):
    S = list(map(float, input().split()))
    L.append(S)
<mask token>
for i in range(len(Y)):
    arg = sum(Y[i]) / N

N, X = map(int, input().split())
L = []
for i in range(X):
    S = list(map(float, input().split()))
    L.append(S)
Y = list(zip(*L))
for i in range(len(Y)):
    arg = sum(Y[i]) / N
