n = 2
m = 2
a = [0] * n
for i in range(n):
    a[i] = [0] * m
print(a)

279929e762c86450a64ef83aaa1171b60fd6a885
<mask token>

<mask token>
for i in range(n):
    a[i] = [0] * m
print(a)

n = 2
m = 2
a = [0] * n
for i in range(n):
    a[i] = [0] * m
print(a)
