1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
N = 100

line = "1" * (N - 1)
line += "0"
print(line)

for i in range(N - 2):
    line = "10" * (N // 2)
    print(line)

line = "0" * (N - 1)
line += "1"
print(line)